Mission Inbox vs Premium Inboxes
Mission Inbox (Dedicated-IP outbound mailboxes) 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 $207.72/mo for Mission Inbox, a difference of $94 a month ($1128 a year).
Last updated 2026-11-02 · list prices, monthly billing
Premium Inboxes
Verdict by use case
Side by side
| Mission Inbox | Premium Inboxes | |
|---|---|---|
| Mailbox type | Private SMTP | Google/Microsoft reseller |
| Platform | SMTP | GoogleMicrosoft |
| Per mailbox / month | $3.33 Lite: $50/month for 15 mailboxes and 5,000 sends. Scale: $199/month for 30 mailboxes and 10,000 sends. Warmup emails count as sends. | $3.50 1-249: $3.50; 250-1,249: $3.00; 1,250+: $2.80. Annual saves 20%. |
| 30 mailboxes / month | $199 | $105 |
| + 10 domains / month | $8.72 * | $8.72 * |
| Total / month | $207.72 | $113.72 |
| Minimum | 15 mailboxes (Lite) | No monthly commitment |
| Warmup | Unknown | No |
| Sending cap | 10,000 sends/month on the Scale plan (warmup counts) | None published |
| Price source | Provider page | Provider page |
* Reference .com price used (provider domain price not published).
Frequently asked questions
Is Mission Inbox cheaper than Premium Inboxes?
For 30 mailboxes + 10 domains on monthly list prices, Premium Inboxes is cheaper: $113.72/mo vs $207.72/mo (checked 2026-11-02).
What's the difference between Mission Inbox and Premium Inboxes?
Mission Inbox: Dedicated-IP outbound mailboxes, $3.33 per mailbox, minimum 15 mailboxes (lite), warmup unknown. Premium Inboxes: Google & Microsoft mailboxes, done-for-you, $3.50 per mailbox, minimum no monthly commitment, warmup no.
Which is better for cold email, Mission Inbox or Premium Inboxes?
On price, Premium Inboxes wins for a 30-inbox setup. Beyond price, compare platform (SMTP vs Google/Microsoft), minimums and warmup. MailboxWatch doesn't test deliverability.