InboxWarm.ai vs Mailwarm
InboxWarm.ai
inboxwarm.aiMailwarm
mailwarm.comSide by side
| Figure | InboxWarm.ai | Mailwarm |
|---|---|---|
| Price from | $5/mo | $69/mo |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Plans published | 6 | 4 |
| Spec score · Email Warmup Software | 8.2 (#10) | 8.3 (#7) |
| Integrations | Supported sending setups include Gmail, Outlook, SendGrid, Amazon SES, Mailgun, Yahoo, and custom SMTP/IMAP. | Official pages list Gmail, Outlook or Office 365, Yahoo, Zoho, SendGrid, Mailgun and other SMTP services. |
| Support | InboxWarm says its support team is available 24/7 by email at [email protected]. | Every plan includes deliverability expertise, with plan-specific expert calls or on-demand calls listed on the pricing page. |
| What it does | InboxWarm.ai automatically warms Gmail, Outlook, and SMTP inboxes to build sender reputation, improve inbox placement, and reduce spam placement. | Mailwarm automates email warmup and deliverability work to improve sender reputation and inbox placement. |
Plans
InboxWarm.ai
- 51–100 mailboxes$5 a month
- 21–50 mailboxes$6 a month
- 6–20 mailboxes$8 a month
- 2–5 mailboxes$11 a month
- 1 mailbox$15 a month
- Custom & enterprisePriced on request
Mailwarm
- Starter$69 a month
- Growth$159 a month
- Scale$479 a month
- Tailored PlanPriced on request
In their own words
InboxWarm.ai
InboxWarm.ai automatically warms Gmail, Outlook, and SMTP inboxes to build sender reputation, improve inbox placement, and reduce spam placement. It sends, opens, and replies to warmup messages using contextual replies generated by large language models and human-like sending patterns. InboxWarm describes its seed network as private and made up of real inboxes. Its spam recovery feature marks warmup messages as not spam and moves them to the primary inbox when they land in spam. Supported setups include Gmail, Outlook, SendGrid, Amazon SES, Mailgun, Yahoo, and custom SMTP/IMAP. Plans include SPF, DKIM, and DMARC domain-health monitoring and real-time inbox-placement tracking. Every plan includes a public REST API with 30 endpoints; the default rate limit is 20 requests per minute per API key. Monthly prices range from $15 a month for one mailbox to $5 a month for 51–100 mailboxes, with up to 100 warmup emails per inbox per day on those listed tiers. A 10-day trial covers one email account without a credit card.