Inframail vs Premium Inboxes
Inframail (Microsoft-backed inboxes, flat fee) and Premium Inboxes (Google & Microsoft mailboxes, done-for-you) are both popular cold email infrastructure picks. For 30 mailboxes on 10 domains, Premium Inboxes is cheaper at $113.72/mo vs $155.72/mo for Inframail, a difference of $42 a month ($504 a year).
Last updated 2026-11-02 · list prices, monthly billing
Premium Inboxes
Verdict by use case
Side by side
| Inframail | Premium Inboxes | |
|---|---|---|
| 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. | $3.50 1-249: $3.50; 250-1,249: $3.00; 1,250+: $2.80. Annual saves 20%. |
| 30 mailboxes / month | $147 | $105 |
| + 10 domains / month | $8.72 * | $8.72 * |
| Total / month | $155.72 | $113.72 |
| Minimum | Flat plan | No monthly commitment |
| 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 Premium Inboxes?
For 30 mailboxes + 10 domains on monthly list prices, Premium Inboxes is cheaper: $113.72/mo vs $155.72/mo (checked 2026-11-02).
What's the difference between Inframail and Premium Inboxes?
Inframail: Microsoft-backed inboxes, flat fee, Flat plan, minimum flat plan, warmup no. Premium Inboxes: Google & Microsoft mailboxes, done-for-you, $3.50 per mailbox, minimum no monthly commitment, warmup no.
Which is better for cold email, Inframail or Premium Inboxes?
On price, Premium Inboxes wins for a 30-inbox setup. Beyond price, compare platform (Microsoft vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.