Mailin vs Zapmail
Mailin (SMTP email accounts in bundles) and Zapmail (Google & Microsoft mailboxes) are both popular cold email infrastructure picks. For 30 mailboxes on 10 domains, Zapmail is cheaper at $107.72/mo vs $307.72/mo for Mailin, a difference of $200 a month ($2400 a year).
Last updated 2026-11-02 · list prices, monthly billing
Verdict by use case
Side by side
| Mailin | Zapmail | |
|---|---|---|
| Mailbox type | Shared SMTP | Google/Microsoft reseller |
| Platform | SMTP | GoogleMicrosoft |
| Per mailbox / month | $1.50 $299/month for 200 accounts, $749 for 500, $1,499 for 1,000 ($1.50 each); extra accounts $1 each. | $3.30 Plan prices ($39/10, $99/30, $299/100) from a third-party table (outboxes.io/compare); Zapmail's own page lists additional mailboxes at $3.50 / $3.25 / $3.00 by plan but plan totals did not render. |
| 30 mailboxes / month | $299 | $99 |
| + 10 domains / month | $8.72 * | $8.72 * |
| Total / month | $307.72 | $107.72 |
| Minimum | $299/month bundle (200 accounts) | 10 mailboxes (starter plan, third-party) |
| Warmup | No | Optional |
| Sending cap | None published | None published |
| Price source | Provider page | Third-party table |
* Reference .com price used (provider domain price not published).
Frequently asked questions
Is Mailin cheaper than Zapmail?
For 30 mailboxes + 10 domains on monthly list prices, Zapmail is cheaper: $107.72/mo vs $307.72/mo (checked 2026-11-02).
What's the difference between Mailin and Zapmail?
Mailin: SMTP email accounts in bundles, $1.50 per mailbox, minimum $299/month bundle (200 accounts), warmup no. Zapmail: Google & Microsoft mailboxes, $3.30 per mailbox, minimum 10 mailboxes (starter plan, third-party), warmup optional.
Which is better for cold email, Mailin or Zapmail?
On price, Zapmail wins for a 30-inbox setup. Beyond price, compare platform (SMTP vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.