Inframail vs Primeforge
Inframail (Microsoft-backed inboxes, flat fee) and Primeforge (Google Workspace & Microsoft 365 mailboxes) are both popular cold email infrastructure picks. For 30 mailboxes on 10 domains, Primeforge is cheaper at $146.67/mo vs $155.72/mo for Inframail, a difference of $9.05 a month ($108.60 a year).
Last updated 2026-10-23 · list prices, monthly billing
Verdict by use case
Side by side
| Inframail | Primeforge | |
|---|---|---|
| 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. | $4.50 Monthly billing. Yearly billing works out to $3.75 (2 months free). |
| 30 mailboxes / month | $147 | $135 |
| + 10 domains / month | $8.72 * | $11.67 |
| Total / month | $155.72 | $146.67 |
| Minimum | Flat plan | 10 mailbox slots |
| Warmup | No | No |
| Sending cap | None published | None published |
| Price source | Third-party table | Provider page |
* Reference .com price used (provider domain price not published).
Frequently asked questions
Is Inframail cheaper than Primeforge?
For 30 mailboxes + 10 domains on monthly list prices, Primeforge is cheaper: $146.67/mo vs $155.72/mo (checked 2026-10-23).
What's the difference between Inframail and Primeforge?
Inframail: Microsoft-backed inboxes, flat fee, Flat plan, minimum flat plan, warmup no. Primeforge: Google Workspace & Microsoft 365 mailboxes, $4.50 per mailbox, minimum 10 mailbox slots, warmup no.
Which is better for cold email, Inframail or Primeforge?
On price, Primeforge wins for a 30-inbox setup. Beyond price, compare platform (Microsoft vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.