Inframail vs Zapmail
Inframail (Microsoft-backed inboxes, flat fee) 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 $155.72/mo for Inframail, a difference of $48 a month ($576 a year).
Last updated 2026-10-23 · list prices, monthly billing
Verdict by use case
Side by side
| Inframail | Zapmail | |
|---|---|---|
| Mailbox type | Microsoft (flat rate) | Google/Microsoft reseller |
| Platform | Microsoft | GoogleMicrosoft |
| Per mailbox / month | Flat plan Flat fee for unlimited inboxes: $147/month ($111.47 billed yearly) per winnr.app; PureMail lists $147 per 28 days. Inframail's homepage only showed a $797/month done-for-you plan. | $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 | $147 | $99 |
| + 10 domains / month | $8.72 * | $8.72 * |
| Total / month | $155.72 | $107.72 |
| Minimum | Flat plan | 10 mailboxes (starter plan, third-party) |
| Warmup | No | Optional |
| Sending cap | None published | None published |
| Price source | Third-party table | Third-party table |
* Reference .com price used (provider domain price not published).
Frequently asked questions
Is Inframail cheaper than Zapmail?
For 30 mailboxes + 10 domains on monthly list prices, Zapmail is cheaper: $107.72/mo vs $155.72/mo (checked 2026-10-23).
What's the difference between Inframail and Zapmail?
Inframail: Microsoft-backed inboxes, flat fee, Flat plan, minimum flat plan, 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, Inframail or Zapmail?
On price, Zapmail wins for a 30-inbox setup. Beyond price, compare platform (Microsoft vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.