Premium Inboxes vs InboxKit
Premium Inboxes (Google & Microsoft mailboxes, done-for-you) and InboxKit (Google & Microsoft mailboxes) are both google/microsoft reseller options. For 30 mailboxes on 10 domains, InboxKit is cheaper at $98.72/mo vs $113.72/mo for Premium Inboxes, a difference of $15.00 a month ($180 a year).
Last updated 2026-10-23 · list prices, monthly billing
Verdict by use case
Side by side
| Premium Inboxes | InboxKit | |
|---|---|---|
| Mailbox type | Google/Microsoft reseller | Google/Microsoft reseller |
| Platform | GoogleMicrosoft | GoogleMicrosoft |
| Per mailbox / month | $3.50 1-249: $3.50; 250-1,249: $3.00; 1,250+: $2.80. Annual saves 20%. | $3.00 $3.00 monthly, $2.50 on annual billing. Azure: $30/tenant/month (up to 100 mailboxes). |
| 30 mailboxes / month | $105 | $90 |
| + 10 domains / month | $8.72 * | $8.72 * |
| Total / month | $113.72 | $98.72 |
| Minimum | No monthly commitment | None |
| Warmup | No | Add-on |
| 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 Premium Inboxes cheaper than InboxKit?
For 30 mailboxes + 10 domains on monthly list prices, InboxKit is cheaper: $98.72/mo vs $113.72/mo (checked 2026-10-23).
What's the difference between Premium Inboxes and InboxKit?
Premium Inboxes: Google & Microsoft mailboxes, done-for-you, $3.50 per mailbox, minimum no monthly commitment, warmup no. InboxKit: Google & Microsoft mailboxes, $3.00 per mailbox, minimum none, warmup add-on.
Which is better for cold email, Premium Inboxes or InboxKit?
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.