Independently tested ranking
Best Cold Email Software for Agencies in 2026
10 cold email tools compared on client workspaces, unlimited inboxes, warm-up, deliverability safeguards and cost at agency volume, from flat-priced senders to multichannel suites.
- Tools compared
- 10
- With a free plan
- 2 of 10
- Median entry price
- $36/mo
- Average rating
- 4.6
On this page
Which cold email software is best for agencies?
The best cold email software for agencies is Instantly for adding unlimited client inboxes on one flat workspace price, Smartlead for white-label client workspaces, lemlist for personalized email and LinkedIn sequences, Saleshandy for low-cost sending with lead credits included, and Reply.io for multichannel campaigns with an AI SDR. Woodpecker and QuickMail lead on deliverability. Flat-priced plans start at $29 a month (Woodpecker) and Smartlead starts at $32 a month billed annually.
Our top picks
Best overall for agencies
Instantly
Unlimited inboxes, warm-up and a shared Unibox on a per-workspace price make it the easiest way to scale client campaigns.
Paid plans from $37.60/mo annual
See why we picked itBest white-label option
Smartlead
Client workspaces and a white-label add-on let clients log into a portal under your agency's brand.
Paid plans from $32/mo annual
See why we picked itBest for personalized multichannel
lemlist
Image and video personalization plus email, LinkedIn and call steps suit agencies selling quality over volume.
Paid plans from $55/user/mo annual
See why we picked itKey takeaways
- Pick flat pricing over per-user pricing. Instantly, Smartlead, Saleshandy, Woodpecker and QuickMail charge per account or workspace, so adding account managers does not raise the bill.
- Unlimited inboxes are now standard. Every flat-priced pick here allows unlimited email accounts, so compare email and contact limits per month instead.
- Client separation costs extra. Smartlead client workspaces, Woodpecker's Agency Panel and QuickMail's Agency workspaces sit on higher plans or add-ons, so price them in from day one.
- Warm-up and rotation protect client domains. All ten picks include some form of warm-up; Woodpecker adds bounce protection and QuickMail adds per-sender reporting.
- Lead data is usually separate. Saleshandy includes lead finder credits on every plan, while Instantly sells lead credits as an add-on and QuickMail has no built-in database.
What is a cold email tool?
The best cold email software for agencies lets you send outbound campaigns for many clients from many inboxes, while keeping each client's domains, campaigns and replies separate. It combines sequence building, inbox warm-up, inbox rotation and a shared reply inbox, usually with pricing that does not grow with every user or mailbox you add.
For an agency, a cold email tool has to do more than send. It needs client workspaces or separate spaces so data never mixes, deliverability safeguards that protect each client's domain, one place to handle replies across dozens of inboxes, and reporting you can share. Lead generation agencies also want lead data, an API or webhooks, and in some cases white-label branding so clients log into a portal under the agency's name.
Best cold email tools compared
| # | Tool | Best for | Free plan | Paid plans from | Our rating |
|---|---|---|---|---|---|
| 1 | Instantly |
Unlimited inboxes, flat price | No (free trial) | $37.60/mo annual | ★4.8 |
| 2 | Smartlead |
White-label client workspaces | No (free trial) | $32/mo annual | ★4.7 |
| 3 | lemlist |
Email plus LinkedIn sequences | No (14-day trial) | $55/user/mo annual | ★4.5 |
| 4 | Saleshandy | Budget agencies needing leads | No (7-day trial) | $34/mo annual | Not yet reviewed |
| 5 |  Reply.io |
Multichannel plus AI SDR | No (14-day trial) | $49/user/mo annual | ★4.5 |
| 6 |  Woodpecker |
Deliverability safeguards, Agency Panel | No (14-day trial) | $29/mo | ★4.5 |
| 7 | QuickMail | Unlimited users, client workspaces | No (14-day trial) | $49/mo | Not yet reviewed |
| 8 |  Snov.io |
Find, verify, warm up, send | Yes (50 credits/mo) | $29.25/mo annual | ★4.6 |
| 9 |  Mailshake |
Simple email and calling | No | $25/user/mo annual | ★4.5 |
| 10 |  Apollo.io |
Lead data plus sequences | Yes (900 credits/yr) | $49/user/mo annual | ★4.5 |
Ratings are MakeSuccessOnline's. Prices are the cheapest paid plan, billed monthly unless marked annual, checked November 2026. Most flat-priced tools charge per account or workspace; lemlist, Reply.io, Mailshake and Apollo.io charge per user.
The 10 best cold email tools in 2026
Agency cold email comes down to inbox capacity, client separation and cost per client. Each tool below leads a different agency setup, from high-volume lead-gen shops to small teams selling personalized outreach.
#1Best overall for agencies scaling sending capacity
Instantly
A cold email platform with unlimited sending inboxes, built-in warm-up, inbox rotation and one shared reply inbox, priced per workspace instead of per user.
- Paid plans from
- $37.60/mo annual
- Free plan
- No (free trial)
- Best for
- Agencies, founders and outbound teams sending cold email at volume
- Works on
- Web, API
Instantly is the easiest way for an agency to add sending capacity without adding cost. Every plan allows unlimited Google, Microsoft and SMTP inboxes with warm-up included, so you can buy a fresh batch of domains for a new client, connect them and start warming the same day. Inbox rotation then keeps each sender's daily volume low across the client's campaigns.
Day to day, the Unibox is what saves agency hours. Replies from every connected inbox land in one place, where your team labels interested leads and answers without logging into dozens of accounts. The Growth plan suits a first few clients, but most agencies move to Hypergrowth for 125,000 emails and 25,000 contacts a month plus the built-in CRM. Lead credits are a separate add-on.
Key features
- Unlimited email accountsConnect as many client inboxes as you need on any plan. You can spread each client's volume across many senders without paying per mailbox.
- Warm-up networkNew and existing inboxes send and receive warm-up emails automatically, so fresh client domains build a sending history before and during campaigns.
- Inbox rotationCampaigns rotate sends across connected inboxes, which keeps daily volume per inbox low and protects each client's sender reputation.
- UniboxEvery reply from every inbox lands in one shared inbox where your team can label leads and respond, instead of checking each client account.
- Lead databaseSearch a large B2B contact database and add verified leads straight to a client campaign, paid for with separate lead credits.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Growth | $37.60/mo annual ($47 monthly) | Unlimited email accounts and warm-up, 5,000 emails and 1,000 uploaded contacts a month |
| Hypergrowth | $85.58/mo annual ($107 monthly) | 125,000 emails and 25,000 contacts a month, plus the built-in CRM |
| Light Speed | $286.30/mo annual ($358 monthly) | 500,000 emails and 100,000 contacts a month |
| Lead credits (add-on) | From $37.60/mo annual | Credits to pull contacts from the lead database, sold separately |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Prices are per workspace, not per user. Free trial, no card required.
Pros and cons
Pros
- Unlimited inboxes and warm-up on every plan
- Pricing does not grow with team size
- Unibox makes multi-client reply handling simple
- Inbox rotation included
Cons
- Lead data and AI features cost extra
- Growth plan's 1,000-contact upload limit is tight for agencies
- Email only, with no LinkedIn or calling steps
Is it right for you?
Choose Instantly ifYou run email-first campaigns for several clients and want to add inboxes freely while keeping one predictable bill.
Look elsewhere ifYour clients expect LinkedIn or phone touches in the same sequence.
#2Best for lead-gen agencies that want a white-label client portal
Smartlead
A cold email platform with unlimited mailboxes, automatic warm-up, mailbox rotation and client workspaces, built largely for agencies running outreach at volume.
- Paid plans from
- $32/mo annual
- Free plan
- No (free trial)
- Best for
- Lead generation agencies, outbound teams and founders sending cold email at scale
- Works on
- Web, API
Smartlead is the pick for agencies that sell cold email as a managed service and want clients to see the work. Each client can sit in a separate workspace, and the white-label add-on puts the app under your agency's brand, so a client logs in to what looks like your own portal. Unlimited mailboxes and automatic warm-up are included on every plan.
For campaign managers, the master inbox gathers replies from every mailbox and campaign, and AI categories surface interested leads first. Mailbox rotation keeps per-inbox volume low. The Base plan is too small for most agencies; Pro adds 90,000 emails a month with client workspaces available, and Unlimited Prime includes three client workspaces. The API and webhooks suit agencies that automate client reporting.
Key features
- Client workspaces and white-labelGive each client a separate workspace and, with the white-label add-on, show them the app under your agency's brand.
- Unlimited mailboxes and warm-upConnect as many sending accounts as you like and warm them up automatically, so adding capacity for a new client does not cost more per inbox.
- Mailbox rotationSpreads a campaign's sends across several connected mailboxes, keeping daily volume per inbox low to protect each client's reputation.
- Master inboxReplies from every mailbox and campaign arrive in one inbox, with AI categories that flag interested leads first so you can book meetings for clients faster.
- API and webhooksPush leads in, pull results out and trigger actions in other tools, which suits agencies that automate client reports or lead hand-offs.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Base | $32/mo annual ($39 monthly) | Unlimited mailboxes and warm-up, 2,000 contacts and 6,000 emails a month |
| Pro | $78/mo annual ($94 monthly) | 30,000 contacts and 90,000 emails a month, with client workspaces available |
| Unlimited Smart | $144/mo annual ($174 monthly) | 150,000 emails a month |
| Unlimited Prime | $315/mo annual ($379 monthly) | 500,000 emails a month and three client workspaces included |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per account, not per user; annual billing saves about 17%. Free trial, no card required.
Pros and cons
Pros
- Built for running many client accounts
- White-label option for a branded client portal
- Unlimited mailboxes and warm-up on every plan
- Full API and webhooks
Cons
- White-label and client workspaces add cost
- Steeper learning curve than Instantly
- Base plan is too small for most agencies
Is it right for you?
Choose Smartlead ifYou run a lead-gen agency and want clients logging into a branded portal while you manage dozens of mailboxes behind it.
Look elsewhere ifYou are a solo consultant who wants the simplest tool, or you need a built-in dialer.
#3Best for agencies selling personalized multichannel outreach
lemlist
A cold outreach platform for personalized email, LinkedIn and call sequences, with a built-in lead database and lemwarm inbox warm-up.
- Paid plans from
- $55/user/mo annual
- Free plan
- No (14-day trial)
- Best for
- Sales teams, founders and agencies running outbound prospecting
- Works on
- Web, Chrome extension, API
lemlist is for agencies that win clients on reply quality rather than send volume. Its image and video personalization shows a prospect's name, logo or website inside the email, and custom variables with conditional text let one campaign read differently for each segment of a client's market. That makes it a good fit for account-based or high-ticket offers.
On the Multichannel plan, a single sequence can mix email, LinkedIn visits, invites and messages, and calls through the built-in dialer, with up to five senders per user. The lead database lets you source prospects for a client without another subscription, and lemwarm handles warm-up on every plan. The catch for agencies is per-user pricing, which grows as your team does.
Key features
- Image and video personalizationInsert images and videos that show the prospect's name, logo or website, which helps a client's cold email stand out in a crowded inbox.
- Multichannel sequencesCombine email, LinkedIn actions and call steps in one sequence on the Multichannel plan, with conditions that change the path based on what the lead does.
- Lead databaseSearch a large B2B database and add leads to a client campaign directly. Finding emails and phone numbers uses credits.
- lemwarmWarms up sending inboxes and monitors deliverability, included on all plans.
- CRM syncTwo-way integrations with HubSpot, Salesforce and Pipedrive keep lead status in step with the client's CRM.
Pricing
| Plan | Price | What you get |
|---|---|---|
| $55/user/mo annual ($69 monthly) | Email sequences, lead database access, email and phone finder, lemwarm warm-up | |
| Multichannel | $87/user/mo annual ($109 monthly) | Email plus LinkedIn automation, built-in dialer and up to five senders per user |
| Enterprise | Custom | More senders per user and custom terms |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per user. 14-day free trial.
Pros and cons
Pros
- Strong personalization with images, video and custom variables
- Email, LinkedIn and calls in one sequence
- Lead database built in
- Warm-up included on every plan
Cons
- Per-user pricing adds up for larger agency teams
- LinkedIn and calling need the pricier Multichannel plan
- Not the cheapest way to send high volume
Is it right for you?
Choose lemlist ifYour agency sells personalized, multichannel campaigns to clients with high-value deals.
Look elsewhere ifYou run high-volume email campaigns on thin margins and need many inboxes per client cheaply.
#4Best low-cost option with leads included
Saleshandy
A cold email tool with unlimited email accounts, sender rotation, warm-up and a built-in B2B lead finder on every plan.
- Paid plans from
- $34/mo annual
- Free plan
- No (7-day trial)
- Best for
- Startups, agencies and small sales teams running cold email outreach
- Works on
- Web, Chrome extension, API
Saleshandy is a strong value pick for smaller agencies. Every plan includes unlimited email accounts, sender rotation, warm-up and lead finder credits, so you can find prospects for a client and start sending from the same account. Pricing is per account rather than per user, which keeps costs flat as you add team members.
Agencies can manage outreach for several clients from one account while keeping campaigns separate. The unified inbox labels replies by status, email verification checks addresses before sending, and an AI copilot drafts a full sequence from a short brief, which speeds up onboarding a new client. Starter's 2,000 active prospects fills fast, so most agencies will want Pro.
Key features
- Unlimited email accountsConnect as many sending inboxes as you need on every plan, so adding capacity for a new client does not raise your bill.
- Sender rotation and warm-upSpreads each campaign across several inboxes and warms them up, keeping daily volume per inbox low and safe.
- Lead finderSearch a B2B database and reveal verified emails using credits included in every plan, so you can build client lists without another tool.
- Agency client managementManage outreach for several clients from one account while keeping each client's campaigns separate.
- Unified inboxRead and answer replies from all inboxes in one place, with leads labeled by status.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Starter | $34/mo annual ($41 monthly) | Unlimited email accounts, 2,000 active prospects, 6,000 emails and 1,500 lead finder credits a month |
| Pro | $76/mo annual ($99 monthly) | 30,000 active prospects, 100,000 emails and 4,000 lead finder credits a month |
| Scale | $149/mo annual ($189 monthly) | Unlimited prospects under fair use, 200,000 emails and 8,000 lead finder credits a month |
| Enterprise | Custom | Custom limits and terms |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per account, not per user. 7-day free trial, no card required.
Pros and cons
Pros
- Lead finder credits included in every plan
- Unlimited email accounts
- Low entry price
- Simple to set up
Cons
- Starter caps active prospects at 2,000
- Short 7-day trial
- Fewer advanced campaign options than Smartlead
Is it right for you?
Choose Saleshandy ifYou are a small agency that wants leads, sending and unlimited inboxes in one low-cost account.
Look elsewhere ifYour clients need LinkedIn or phone steps, or you want a long trial before committing.
#5Best for agencies running multichannel and AI SDR campaigns
Reply.io
A multichannel sales engagement platform for email, LinkedIn, calls and SMS, with a built-in contact database, the Jason AI SDR and an Agency plan.
- Paid plans from
- $49/user/mo annual
- Free plan
- No (14-day trial)
- Best for
- SDR teams, startups, SaaS companies and lead generation agencies
- Works on
- Web, Chrome extension, API
Reply.io fits agencies that sell full outbound programs rather than email alone. Sequences can mix email, LinkedIn actions, calls, SMS and WhatsApp, so a client's prospect gets the right channel at the right step. The contact database and Chrome extension let you build lead lists for each client inside the same tool.
Its Jason AI SDR is an AI agent that builds lead lists, writes emails, handles replies and books meetings, which can stretch a small agency team across more clients. The Agency plan adds client management and is quoted by sales. CRM sync with Salesforce, HubSpot and Pipedrive keeps every touch visible in the client's own CRM.
Key features
- Multichannel sequencesMix email, LinkedIn actions, calls, SMS and WhatsApp in one sequence, so client campaigns are not limited to the inbox.
- Jason AI SDRAn AI agent that builds lead lists, writes emails, handles replies and books meetings for a campaign.
- Agency planClient management for agencies running outreach for several businesses, priced on request.
- Contact databaseFind B2B contacts with emails and phone numbers inside Reply.io or via its Chrome extension.
- CRM integrationsSync activity with Salesforce, HubSpot and Pipedrive so clients see every touch in their own CRM.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Email Volume | $49/user/mo annual | Email-only sequences |
| Multichannel | Higher | Adds LinkedIn, calls and SMS steps to sequences |
| Jason AI SDR | Higher | AI agent that finds leads, writes emails and handles replies |
| Agency | Custom | Client management for agencies |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per user. 14-day free trial.
Pros and cons
Pros
- Widest channel coverage of these picks
- Jason AI SDR can run whole campaigns
- Contact data built in
- Dedicated Agency plan
Cons
- Multichannel and AI features sit on pricier plans
- Per-user pricing adds up for teams
- Longer setup than email-only tools
Is it right for you?
Choose Reply.io ifYour agency sells multichannel outbound and wants AI help to run more client campaigns with the same team.
Look elsewhere ifYou only need cheap email sending across many inboxes.
#6Best for agencies that put deliverability first
Woodpecker
A cold email and LinkedIn outreach tool focused on safe, human-like sending, with an Agency Panel add-on for managing client accounts.
- Paid plans from
- $29/mo
- Free plan
- No (14-day trial)
- Best for
- B2B companies, startups and agencies running careful, deliverability-focused outreach
- Works on
- Web, API
Woodpecker is for agencies whose biggest fear is burning a client's domain. It sends at irregular intervals within set hours rather than in bursts, verifies addresses, and pauses sending from an inbox when bounces rise, so one bad client list does not damage the domain. Unlimited email accounts and contact verification are included on the Email plan.
The Agency Panel add-on gives each client a separate space, lets you run bulk actions across campaigns and offers view-only client access, so clients can check progress without touching settings. Condition-based campaigns branch on opens, clicks or replies. The trade-off is cost at scale: pricing rises with email volume, and only three warm-ups come with the Email plan.
Key features
- Agency PanelAn add-on with a separate space per client, bulk campaign actions and view-only client access for transparent reporting.
- Human-like sendingSends at irregular intervals within your chosen hours rather than in bursts, which looks more natural to email providers.
- Bounce protection and verificationVerifies addresses and pauses sending from an inbox when bounces rise, so one bad client list does not damage a domain.
- Condition-based campaignsBranch a sequence based on whether a prospect opens, clicks or replies.
- Unlimited email accountsConnect as many sending inboxes as you need and rotate between them, so volume per inbox stays low.
Pricing
| Plan | Price | What you get |
|---|---|---|
| $29/mo | Unlimited email accounts, contact storage and verification, three warm-ups, from 5,000 emails a month | |
| Multichannel | Higher | Email plus one LinkedIn account with LinkedIn actions |
| Higher | LinkedIn outreach only | |
| Scale | Custom | Higher sending and LinkedIn limits |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Price scales with monthly email volume; annual billing saves up to 33%. 14-day free trial or 500 cold emails, whichever comes first, no card required.
Pros and cons
Pros
- Strong safeguards for client sender reputation
- Unlimited email verification included
- View-only client access through the Agency Panel
- Trial needs no card
Cons
- Agency Panel, extra warm-ups and API are paid add-ons
- Less suited to very high volume
- Price rises quickly with sending volume
Is it right for you?
Choose Woodpecker ifYou manage outreach for clients with valuable domains and want strict sending safeguards plus client view-only access.
Look elsewhere ifYou send very high volumes on a tight budget and want the lowest cost per email.
#7Best for agencies with many senders and teammates
QuickMail
A deliverability-focused cold email platform with inbox rotation, free MailFlow warm-up and unlimited senders and users.
- Paid plans from
- $49/mo
- Free plan
- No (14-day trial)
- Best for
- Agencies and B2B teams that send cold email for several clients or senders
- Works on
- Web, API
QuickMail is built for agencies sending on behalf of several clients from many inboxes. Inbox rotation sends each campaign from several inboxes in turn, MailFlow warm-up is free on every plan, and per-sender reporting shows which inbox is struggling before it drags down a client's results. Senders, LinkedIn accounts and users are unlimited on every plan.
The Agency plan is where client separation comes in: two workspaces, 100,000 contacts, 500,000 emails a month and webhooks, with more workspaces for a fee. Growth adds API access at $99 a month. There are no contracts and plan changes are prorated, which helps agencies whose client roster changes month to month. You will need a separate tool for lead data.
Key features
- Agency workspacesKeep each client in its own workspace on the Agency plan, with more workspaces available for a fee.
- Inbox rotationSends each campaign from several inboxes in turn, so no single sender carries too much volume.
- MailFlow warm-upFree automatic warm-up for sending inboxes through MailFlow, included on every plan.
- Unlimited senders and usersAdd as many email senders, LinkedIn accounts and teammates as you need without paying per seat.
- Per-sender reportingSee results for each inbox and campaign, so you can catch a weak sender before it affects a client's campaign.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Starter | $49/mo | 1,000 uploaded contacts and 5,000 emails a month, one workspace |
| Growth | $99/mo | 25,000 contacts, 100,000 emails a month and API access |
| Agency | $299/mo | 100,000 contacts, 500,000 emails a month, two workspaces and webhooks |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Unlimited users on every plan. 14-day free trial; a card is needed, but the trial does not convert automatically.
Pros and cons
Pros
- Unlimited senders, LinkedIn accounts and users
- Free warm-up included
- Per-sender reporting for spotting weak inboxes
- No contracts, and plan changes are prorated
Cons
- No built-in lead database
- Agency plan is a big step up in price
- Card required to start the trial
Is it right for you?
Choose QuickMail ifYour agency has many teammates and client senders and you want deliverability reporting without per-seat costs.
Look elsewhere ifYou want lead data built in or are a solo operator on a tight budget.
#8Best all-in-one suite for small agencies
Snov.io
A sales toolkit that finds and verifies emails, warms up inboxes and runs email and LinkedIn campaigns, with a built-in CRM.
- Paid plans from
- $29.25/mo annual
- Free plan
- Yes (50 credits/mo)
- Best for
- Small sales teams, startups and agencies running cold outreach
- Works on
- Web, Chrome extensions, API, MCP
Snov.io suits small agencies that want to find, verify and email prospects without stitching tools together. You can source a client's leads by company, domain or LinkedIn with the Chrome extension, clean the list with the verifier, then send multichannel campaigns from unlimited senders. Team seats are unlimited on paid plans, so account managers do not add cost.
The deliverability toolkit runs health checks, spam-risk monitoring and SPF, DKIM, DMARC and blacklist checks, which helps when onboarding a client's domains. Starter includes three warm-up slots; Pro S adds unlimited warm-up. Credits are the limit to watch, since each plan's monthly credits cover finding and verifying. LinkedIn automation costs $69 per slot a month as an add-on.
Key features
- Email FinderFind business emails by name and company, by domain, from an ideal-customer search, or from LinkedIn with the Chrome extension.
- Email VerifierCleans client lists before sending with multi-step verification, which reduces bounces and protects sender reputation.
- Deliverability toolkitHealth checks, spam-risk monitoring, placement diagnostics and free SPF, DKIM, DMARC and blacklist checkers for each client domain.
- Multichannel campaignsSequences that combine email and LinkedIn steps with follow-ups, timing rules and A/B tests.
- UniboxA shared inbox that collects replies from all connected senders, with reply and sentiment tracking.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Trial (free) | $0 | 50 credits and 100 unique recipients a month, 1 warm-up slot, campaigns and CRM |
| Starter | $29.25/mo annual ($39 monthly) | 1,000 credits, 5,000 recipients, 3 warm-up slots, unlimited senders and team seats, API and integrations |
| Pro S | $74.25/mo annual ($99 monthly) | 5,000 credits, 25,000 recipients and unlimited warm-up |
| Pro M | $189/mo monthly | 20,000 credits, 50,000 recipients and unlimited warm-up |
| Pro L | $369/mo monthly | 50,000 credits, 100,000 recipients and unlimited warm-up |
| Ultra | $738/mo monthly | 100,000 credits, 200,000 recipients and unlimited warm-up |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Annual billing saves 25%. The free plan renews every 30 days with no end date. LinkedIn Automation is an add-on with a 7-day free trial.
Pros and cons
Pros
- Free plan that renews every month
- Find, verify, warm up and send in one tool
- Unlimited team seats and senders on paid plans
- Built-in CRM and unibox
Cons
- Credits run out quickly on lower plans
- LinkedIn automation and enrichment cost extra
- Free plan blocks exports, integrations and bulk tasks
Is it right for you?
Choose Snov.io ifYou are a small agency that wants prospecting, verification and sending in one affordable tool.
Look elsewhere ifYou need a very large proprietary database or deep phone data for clients.
#9Best simple tool for small agency teams
Mailshake
A simple cold email and sales engagement tool with an AI writer, warm-up, Lead Catcher reply hub and a power dialer on the top plan.
- Paid plans from
- $25/user/mo annual
- Free plan
- No
- Best for
- Sales reps, startups and small sales teams that want easy outreach
- Works on
- Web, Chrome extension, API
Mailshake works best for small agency teams that value simplicity over scale. Campaigns and follow-ups take a few steps to set up, the SHAKESpeare AI writer drafts emails from a short prompt, and warm-up is included from Starter. Lead Catcher gathers replies in one place and flags the prospects who need a response, which keeps a small team on top of several client campaigns.
The limit for agencies is inboxes. Starter includes one email address, Email Outreach two and Sales Engagement ten, with unlimited addresses only on the custom Agency plan. Sales Engagement adds 2,500 Data Finder credits and a power dialer, useful if your agency books meetings by phone as well as email. Pricing is per user, so costs grow with headcount.
Key features
- Simple sequence builderSet up a campaign and its follow-ups in a few steps, which keeps training time short for new agency staff.
- Lead CatcherCollects replies and engagement into one place and flags the prospects who need a response.
- SHAKESpeare AI writerDrafts cold emails and follow-ups from a short prompt, included on every plan.
- Power dialerCall prospects from inside Mailshake with five phone numbers, on the Sales Engagement plan.
- Agency planA custom plan with unlimited email addresses for agencies running outreach for many clients.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Starter | $25/user/mo annual ($29 monthly) | One email address, 1,500 sends a month, warm-up and AI writing |
| Email Outreach | $45/user/mo annual ($49 monthly) | Two email addresses, unlimited sends, rotation, unified inbox and CRM integrations |
| Sales Engagement | $85/user/mo annual ($99 monthly) | Ten email addresses, 2,500 Data Finder credits and a power dialer |
| Agency | Custom | Unlimited email addresses |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per user.
Pros and cons
Pros
- Easy for new staff to learn
- AI writer and warm-up on every plan
- Built-in dialer on Sales Engagement
- Clear, simple pricing
Cons
- Few email addresses per user outside the Agency plan
- No free trial
- Fewer deliverability controls than Woodpecker or QuickMail
Is it right for you?
Choose Mailshake ifYou run a small agency team that wants easy email and phone sequences for a handful of clients.
Look elsewhere ifYou need dozens of inboxes per client without negotiating a custom plan.
#10Best for sourcing B2B leads for clients
Apollo.io
A B2B contact database combined with sequences, a dialer, enrichment and deal tools in one sales platform.
- Paid plans from
- $49/user/mo annual
- Free plan
- Yes (900 credits/yr)
- Best for
- Sales reps, SDR teams, founders and RevOps teams doing outbound and inbound prospecting
- Works on
- Web, Chrome extension, API, MCP
Many agencies use Apollo.io as the data layer behind their cold email stack. You can filter its 240M contacts and 30M companies by title, seniority, company size, industry, technology and intent to build a client's ideal-customer list, then enrich records with waterfall enrichment on paid plans. The Chrome extension shows emails and phone numbers on LinkedIn and Gmail.
Apollo also runs sequences with emails, calls and tasks, plus a deliverability suite and warm-up on paid plans, so it can handle a smaller client's campaigns end to end. For high-volume agency sending across many inboxes, though, it is usually better to export lists to a dedicated sender. Credits do not roll over and phone numbers cost 8 credits each, so plan data use per client.
Key features
- Apollo DataSearch 240M contacts and 30M companies with filters for title, seniority, company size, industry, technology and intent to build client lead lists.
- SequencesMulti-step outreach with automatic emails, calls and tasks; Professional and up add A/Z testing.
- Waterfall EnrichmentFills gaps in records using Apollo's data plus partner sources, on paid plans.
- Deliverability Suite and warm-upWarm up mailboxes and buy domains and mailboxes inside Apollo, on paid plans.
- Chrome extensionSee emails and phone numbers on LinkedIn, Gmail and Salesforce and add people to sequences from the page.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 900 credits per seat a year, 2 sequences, 1 Gmail mailbox per user, 250 emails a day |
| Basic | $49/seat/mo annual ($65 monthly) | Unlimited sequences, deliverability suite and warm-up, CRM integrations, waterfall enrichment, US dialer |
| Professional | $79/seat/mo annual ($99 monthly) | A/Z testing, AI lead scoring, call recordings and unlimited daily sends |
| Organization | $119/seat/mo annual (minimum 3 seats) | Intent topics, more call recording minutes and 500 workflows |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Priced per seat, and all seats on an account must be on the same plan. 14-day free trial of Basic or Professional.
Pros and cons
Pros
- Large contact database and outreach in one product
- Free plan with no time limit
- Good Chrome extension for LinkedIn and Gmail
- Strong CRM integrations
Cons
- Not built for high-volume sending across many inboxes
- Credits do not roll over, and phone numbers cost 8 credits each
- Free plan connects Gmail only and caps sends at 250 a day
Is it right for you?
Choose Apollo.io ifYour agency needs a reliable source of B2B leads for clients and wants basic sequencing in the same tool.
Look elsewhere ifYou need sending infrastructure for dozens of client inboxes at volume.
Best cold email tool by need
- Adding unlimited client inboxes cheaplyInstantly
- Branded client portalSmartlead
- Email plus LinkedIn campaignslemlist
- Lead finder credits includedSaleshandy
- AI SDR and many channelsReply.io
- Protecting client domainsWoodpecker
- Unlimited users with no seat feesQuickMail
- Free plan for testing offersSnov.io
- Building client lead listsApollo.io
What to look for in a cold email tool
- Client workspacesSeparate spaces per client keep campaigns, leads and inboxes apart. Check whether they are included or billed per workspace, as with Smartlead, Woodpecker and QuickMail.
- Unlimited email accountsAgencies spread volume across many inboxes per client. Look for unlimited email accounts on every plan so new client domains do not raise your bill.
- Warm-up and inbox rotationBuilt-in email warm-up and inbox rotation keep daily volume per inbox low and give new domains a sending history. Confirm how many inboxes the plan can warm up.
- Unified reply inboxOne inbox for replies from every client mailbox saves hours. Labels or AI categories that flag interested leads first help you book meetings faster.
- White-label and client accessIf clients want to see results, look for white-label portals or view-only access, such as Smartlead's white-label add-on or Woodpecker's Agency Panel.
- Flat pricing and clear limitsPer-account pricing scales better for agencies than per-user pricing. Compare emails and contacts per month, not just the entry price.
How much does cold email software for agencies cost in 2026?
Cold email software for agencies costs about $29 to $49 a month for an entry flat plan, $74 to $107 a month for agency-level volume, and $144 to $379 a month for the highest-volume tiers. Per-user tools charge $25 to $119 per user a month instead.
| Tier | Typical price | Tools at this level | Who it suits |
|---|---|---|---|
| Free | $0 | Snov.io (50 credits/mo), Apollo.io (900 credits/yr) | Testing a new client offer or sourcing a few leads |
| Entry flat plan | $29 to $49/mo | Woodpecker, Snov.io Starter (annual), Smartlead Base (annual), Saleshandy Starter (annual), Instantly Growth (annual), QuickMail Starter | New agencies with one to three small clients |
| Agency volume | $74 to $107/mo | Saleshandy Pro (annual), Smartlead Pro (annual), Instantly Hypergrowth, QuickMail Growth, Snov.io Pro S | Growing agencies running several clients at up to 125,000 emails a month |
| High volume and client separation | $144 to $379/mo | Smartlead Unlimited Smart and Prime, Saleshandy Scale, Instantly Light Speed, QuickMail Agency | Lead-gen agencies sending hundreds of thousands of emails a month with separate client workspaces |
Entry prices from vendor pricing, November 2026. Per-user tools (lemlist from $55, Reply.io from $49, Mailshake from $25 and Apollo.io from $49 per user a month, billed annually) cost more as your team grows.
Budget for more than the base plan. Agencies usually also pay for domains and inboxes, lead data and client workspaces or white-label add-ons. A per-account tool such as Smartlead Pro at $78 a month annual covers a whole team, while five users on lemlist Email at $55 each costs $275 a month. Many agencies pass software and inbox costs to each client as a setup or monthly fee.
How we chose the best cold email tools
We started with the cold email tools in the MakeSuccessOnline directory and added well-known agency tools we have not reviewed yet, such as Saleshandy and QuickMail. We scored each one on the criteria below with agency work in mind: onboarding a new client's domains, warming and rotating inboxes, running campaigns for several clients at once, handling replies and reporting results. We used our hands-on reviews, vendor documentation and current pricing, checked November 2026.
- Multi-client managementClient workspaces, white-label options, client access and keeping data separate.25%
- Deliverability and inbox scalingUnlimited inboxes, warm-up, rotation, verification and sending safeguards.25%
- Cost at agency volumePer-account versus per-user pricing, email and contact limits, and add-on costs.15%
- Personalization and channelsSequence logic, personalization, LinkedIn and call steps.15%
- Reply handling and reportingUnified inbox, lead labels and per-campaign or per-sender analytics.10%
- Lead data and integrationsBuilt-in lead databases, CRM sync, API and webhooks.10%
How to choose a cold email tool
- Count your inboxes and volumeList how many clients you serve, inboxes per client and emails a month. That tells you which plan tier you need, since most tools cap emails and contacts rather than inboxes.
- Decide how clients should see the workIf clients want their own login, you need client workspaces, white-label or view-only access. If you only send reports, a single workspace may be enough.
- Compare flat and per-user pricingPrice the tool for your real team size. Per-account tools stay flat as you hire; per-user tools such as lemlist and Reply.io grow with every seat.
- Check deliverability featuresConfirm warm-up for every inbox, inbox rotation, verification and bounce protection. One burned client domain costs more than any subscription.
- Plan your lead sourceDecide whether you need lead data inside the tool, like Saleshandy, Snov.io or Apollo.io, or will import lists from a separate provider.
- Run a real client campaign in the trialConnect a few warmed inboxes, launch one small campaign and test reply handling, reporting and any CRM or API connection before you commit.
Check during the free trial
- How much do client workspaces or white-label branding cost on the plan I need?
- How many inboxes can be warmed up at once, and is warm-up included on every plan?
- What are the monthly limits on emails, uploaded contacts and active prospects?
- Can I see replies from every client inbox in one place, with labels or categories?
- Can I export campaign results or connect them to client CRMs and reports?
Red flags
- Per-user pricing when your agency plans to grow its team quickly
- Client workspaces or white-label sold as expensive add-ons you only discover after signing up
- Warm-up limited to a few inboxes when you need dozens per client
- Low monthly contact or prospect caps that stall campaigns mid-month
- No way to separate client data, so one client's leads or replies can mix with another's
Cold email software for agencies FAQs
What is the best cold email software for agencies?
Instantly is the best cold email software for most agencies, thanks to unlimited inboxes, warm-up and a shared reply inbox on a per-workspace price. Smartlead is better if you want white-label client workspaces, lemlist suits personalized email and LinkedIn campaigns, and Saleshandy is the best low-cost option with lead finder credits included.
Is there free cold email software for agencies?
Yes, but free plans are too small for client work. Snov.io has a free plan with 50 credits and 100 recipients a month, and Apollo.io's free plan includes 900 credits a year and 250 emails a day from one Gmail mailbox. Instantly, Smartlead, Saleshandy, Woodpecker and QuickMail offer free trials instead.
How much does cold email software cost for an agency?
Most agencies pay $29 to $107 a month for a flat-priced cold email tool. Woodpecker starts at $29 a month, Smartlead Base at $32 and Instantly Growth at $37.60 billed annually. High-volume tiers such as Smartlead Unlimited Prime ($315 annual) and QuickMail Agency ($299) suit larger agencies.
Instantly vs Smartlead: which is better for agencies?
Instantly is better if you want the simplest way to add inboxes and handle replies on one flat price. Smartlead is better if clients need their own workspaces or a white-label portal, and if you want to automate reporting and lead routing through its API and webhooks. Both include unlimited mailboxes and warm-up on every plan.
Can I white-label cold email software for my clients?
Yes. Smartlead offers a white-label add-on that shows the app under your agency's brand, along with separate client workspaces. Woodpecker's Agency Panel gives clients view-only access to their own space, and QuickMail's Agency plan keeps each client in a separate workspace.
Should each agency client have separate sending domains?
Yes, keeping each client on its own domains and inboxes is the safest setup. It stops one client's list quality from affecting another's deliverability. Tools with client workspaces, inbox rotation and per-sender reporting, such as Smartlead, QuickMail and Woodpecker, make that separation easier to manage.
How do I choose cold email software for my agency?
Start with your volume and how clients should see results. Count inboxes and monthly emails, decide whether you need client workspaces or white-label, compare per-account and per-user pricing, check warm-up and rotation, and decide where your lead data will come from. Then run a real campaign during the trial.
Do cold email tools include lead data?
Some do. Saleshandy includes lead finder credits on every plan, lemlist and Reply.io have built-in databases, and Apollo.io offers 240M contacts. Instantly sells lead credits as a separate add-on, while QuickMail has no built-in database, so you import lists from another tool.
About the reviewer
Editor & Reviewer, MakeSuccessOnline
William Harrison is an editor and reviewer at MakeSuccessOnline. He reviews each tools ranking before it goes live, checking plans, prices, free tiers and features against the tool's own documentation, and keeps rankings current as tools change.