InboxKit vs Primeforge
InboxKit (Google & Microsoft mailboxes) and Primeforge (Google Workspace & Microsoft 365 mailboxes) are both Google/Microsoft reseller options. For 30 mailboxes on 10 domains, InboxKit is cheaper at $98.72/mo vs $146.67/mo for Primeforge, a difference of $47.95 a month ($575.40 a year).
Last updated 2026-11-02 · list prices, monthly billing
Verdict by use case
Side by side
| InboxKit | Primeforge | |
|---|---|---|
| Mailbox type | Google/Microsoft reseller | Google/Microsoft reseller |
| Platform | GoogleMicrosoft | GoogleMicrosoft |
| Per mailbox / month | $3.00 $3.00 monthly, $2.50 on annual billing. Azure: $30/tenant/month (up to 100 mailboxes). | $4.50 Monthly billing. Yearly billing works out to $3.75 (2 months free). |
| 30 mailboxes / month | $90 | $135 |
| + 10 domains / month | $8.72 * | $11.67 |
| Total / month | $98.72 | $146.67 |
| Minimum | None | 10 mailbox slots |
| Warmup | Add-on | No |
| Sending cap | None published | None published |
| Price source | Provider page | Provider page |
* Reference .com price used (provider domain price not published).
Frequently asked questions
Is InboxKit cheaper than Primeforge?
For 30 mailboxes + 10 domains on monthly list prices, InboxKit is cheaper: $98.72/mo vs $146.67/mo (checked 2026-11-02).
What's the difference between InboxKit and Primeforge?
InboxKit: Google & Microsoft mailboxes, $3.00 per mailbox, minimum none, warmup add-on. Primeforge: Google Workspace & Microsoft 365 mailboxes, $4.50 per mailbox, minimum 10 mailbox slots, warmup no.
Which is better for cold email, InboxKit or Primeforge?
On price, InboxKit wins for a 30-inbox setup. Beyond price, compare platform (Google/Microsoft vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.