Mailwarm was one of the first dedicated warmup tools. It does warmup-only (like Warmerly), but charges per-mailbox at premium pricing.
The cheaper, specialised alternative. Warmup-only, warmup included on every mailbox, daily auth checks, 5-provider placement insight.
Old-school warmup-only at premium pricing.
| Warmerly | Mailwarm | |
|---|---|---|
| Pricing model | Flat, mailboxes and warmup included | Per mailbox |
| Starting price (per month) | $19 | $69 |
| 10 mailboxes monthly cost | $19 | $690 |
| Spam-folder rescue interval | 10 minutes | 60 minutes |
| Reply with quoted history | Yes | Yes |
| Inbox placement seeds | 5 providers | Gmail only |
| Auth monitoring (SPF/DKIM/DMARC) | Daily | — |
| Reputation drop alerts | Email + webhook + Slack | Email only |
| API access | Agency plan | — |
| USD/GBP billing | Yes | USD only |
On price-per-mailbox, this is not close. Mailwarm's per-seat pricing makes sense for a 1-mailbox setup, but the moment you have 3 or more mailboxes, Warmerly is dramatically cheaper for a more modern feature set.
Yes, it does warmup. The question is whether the feature set and price are competitive in 2026.
Disconnect from Mailwarm, connect to Warmerly via OAuth, pick a ramp. About 2 minutes per mailbox.
Connect a mailbox to Warmerly in 60 seconds. 7-day free trial, card required, first charge on day 8. We will warm right alongside whatever you use now, so you can A/B without commitment.