Cold Email Software With Unlimited Email Accounts
Updated August 6, 2026 · 8 platforms checked against their own pricing pages
8 of the 8 platforms we track publish an unlimited mailbox or sender allowance on their own pricing page, and 3 of the 8 claims they make are qualified by the vendor somewhere on the same site. The claims are real, and on most plans they are not the thing that will stop you: these platforms cap something else instead, and that cap is published on the same card as the unlimited line. The tier matters though. Apollo.io's cheapest paid tier is capped at 1 mailbox per user, and its unlimited line only starts higher up. This page prints the claim, the qualification and the cap side by side, so you can buy on the number that binds.
RangeYourself has no affiliate relationship with any platform on this page as of August 6, 2026: every link here goes straight to the vendor’s own site and earns us nothing. We may pursue one in this category, and if we do we will say so here. Either way the ordering follows published prices and each vendor’s own stated terms, and a vendor that pays nothing is listed on exactly the same basis as one that does. See how we make money and our editorial standards.
The claims, and the vendors’ own qualifications
| Platform | What the vendor says | The vendor’s own qualification | What is metered instead |
|---|---|---|---|
| Instantly Growth | “Unlimited Email Accounts” | None found on the vendor’s pricing page. | Emails sent and uploaded contacts are both capped per tier, so the unlimited mailbox count does not lift the sending ceiling. |
| Smartlead Base | “All Smartlead plans include unlimited email accounts at no extra cost.” | None found on the vendor’s pricing page. | Email sends and stored contacts are metered per tier, so mailbox count is not what limits volume. |
| lemlist | “Unlimited Users & Email Senders” | “Email From $55 /user /mo” | Emails are capped at 50,000 a month on this plan, and the comparison table on the same page prices the plan per user. |
| Woodpecker 500 contacted prospects | “Unlimited email accounts” | None found on the vendor’s pricing page. | Contacted prospects are the metered unit, and the email allowance is derived from them by a published formula. |
| Saleshandy Outreach Starter | “Unlimited email accounts” | None found on the vendor’s pricing page. | Active prospects and monthly emails are both capped per tier, and Saleshandy states there is no per-seat or per-email-account fee. |
| QuickMail Starter Plan | “Unlimited Email Sender” | None found on the vendor’s pricing page. | Emails sent and uploaded contacts are capped per plan, and workspaces are capped and separately priced. |
| Apollo.io Professional | “Unlimited Google and Microsoft mailboxes + 5 SMTP mailboxes per user” | “1 mailbox per user” | Unlimited applies only from Professional. The Free and Basic tiers are capped at one mailbox per user, and SMTP mailboxes stay capped on every tier. |
What actually binds you, and what it costs
The entry plan for each platform, with the price on whichever billing term the vendor prices lowest and the allowances that cap it. This is the table to buy from.
| Platform | Entry plan | Cheapest published price | Emails | Contacts | Mailboxes |
|---|---|---|---|---|---|
| Woodpecker verified 2026-08-06 | 500 contacted prospects | $23.33/mo billed annually (our arithmetic on the published $280/year; the vendor displays $24, which is above what its own annual total implies) | 8,000 emails a month | 500 contacted prospects a month, 2,000 stored prospects | Unlimited email accounts |
| Saleshandy verified 2026-08-06 | Outreach Starter | $25/mo billed annually | 6,000 emails a month | 2,000 active prospects | Unlimited email accounts |
| Smartlead verified 2026-08-06 | Base | $32.50/mo billed annually | 6,000 email sends a month | 2,000 contacts | Unlimited email accounts |
| Instantly verified 2026-08-06 | Growth | $37.60/mo billed annually | 5,000 emails a month | 1,000 uploaded contacts | Unlimited email accounts |
| Apollo.io verified 2026-08-06 | Basic | $49/mo billed annually | 250 emails a day | Not stated | 1 mailbox per user |
| QuickMail verified 2026-08-06 | Starter Plan | $49/mo billed monthly | 5,000 emails sent a month | 1,000 uploaded contacts | Unlimited email senders, unlimited LinkedIn accounts, unlimited users |
| lemlist verified 2026-08-06 | $55/mo billed annually | 50,000 emails a month | Unlimited contacts | Unlimited users and email senders |
Warmup, which is the other thing people assume is included
It usually is, and here it is stated per platform rather than assumed.
- Instantly: warmup included on Growth, in the vendor’s words “Unlimited Email Warmup”.
- Smartlead: warmup included on Base, in the vendor’s words “Warmup Pool”.
- lemlist: warmup included on Email, in the vendor’s words “Deliverability Hub & Warm-up”.
- Woodpecker: warmup included on 500 contacted prospects, in the vendor’s words “Warm-ups 2”.
- Saleshandy: warmup included on Outreach Starter, in the vendor’s words “Every plan includes unlimited email accounts, unlimited email warm-up, a unified inbox, unlimited prospects in the built-in CRM, MCP access, and API.”.
- Reply.io: warmup included on Email Volume, in the vendor’s words “Email warmup”.
- QuickMail: warmup included on Starter Plan, in the vendor’s words “Free AutoWarmer with MailFlow”.
- Apollo.io: warmup included on Basic, in the vendor’s words “Deliverability Suite & Email Warmup”.
How this page is verified
Every figure on this page was read from the vendor’s own site and is stored with the URL it came from, a verbatim quote, and the date it was checked (most recent: August 6, 2026). That is the vendor’s pricing page in almost every case; where a vendor publishes its own machine-readable pricing file, a fact may come from that instead, and the stored URL says so. Where a page renders its prices in the browser rather than in the served HTML, we read the rendered page at the same URL and record that we did. Where a vendor publishes no number, we say so instead of repeating a figure from elsewhere. Nothing here is a performance claim: we have not tested deliverability, and no vendor’s own marketing is repeated as a result. Percentages are arithmetic on two published figures and nothing else. See our editorial standards and how we verify.
Frequently asked questions
Which cold email tools have unlimited email accounts?
Instantly (on Growth), Smartlead (on Base), lemlist (on Email), Woodpecker (on 500 contacted prospects), Saleshandy (on Outreach Starter), Reply.io (on Email Volume), QuickMail (on Starter Plan), Apollo.io (on Professional) each publish an unlimited mailbox or sender allowance on their own pricing pages, verified August 6, 2026. The tier matters: Apollo's applies from Professional and its cheapest paid tier is capped at one mailbox per user. Each claim is quoted in full on this page.
Is unlimited mailboxes ever qualified by the vendor?
On 3 of the 8 claims in this index. Reply.io's is the most specific: it states that its fair usage policy determines the number of mailboxes included, based on your active contact limit and overall usage.
If mailboxes are unlimited, what limits my sending?
The plan does. Every platform here caps emails sent per month, contacts or prospects stored, or both, and one caps contacted prospects per month instead. Those caps are published, and they are the numbers to compare.
Does adding more mailboxes let me send more emails?
Not on any platform in this index. The plan limit is set per plan, so connecting more mailboxes divides the same permitted volume across more senders rather than raising it.
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