Comparison
RoxInbox vs Warmbox
VerdictWarmbox is a standalone warm-up tool with configurable warm-up schedules and plans priced by bundles of inboxes. RoxInbox is the better fit if you need proof of inbox placement on every provider your recipients use, a guarantee, and GDPR-grade data protection for EU and US teams; Warmbox is a reasonable choice for senders who want to set their own warm-up schedule by hand.
Side-by-side comparison
| Feature | RoxInbox | Warmbox | Source |
|---|---|---|---|
| Price | From $15 per mailbox per month, down to $9.50 at 101-150 mailboxes; 20% off annually | Solo: $19 a month for 1 inbox ($15 billed yearly); Start-up: $79 for 3 inboxes; Growth: $159 for 6 inboxes | /pricing |
| Placement tests | 20 placement test credits a month included, across every network provider | Spam score monitoring; no per-provider placement test listed | /pricing |
| Diagnostics | DNS audit (SPF, DKIM, DMARC, MX, PTR) and blacklist checks included | Live email checker for DNS and blacklists | /pricing |
| Providers | Outlook / M365, Google Workspace, Yahoo, Zoho, iCloud, Mail.ru, Yandex, GMX / WEB.DE, any SMTP; no provider above 40% of the network | Google, Outlook / M365, Yahoo, iCloud, AOL, Yandex, Zoho, SendGrid, Sendinblue, Mailgun, Amazon SES, any SMTP | Home |
| Guarantee | Inbox-ready guarantee: 85% by day 21 per mailbox, or next month free | None shown on the pricing page | /pricing |
| Agency pricing | Prices published up to 150 mailboxes; agency plan with client workspaces | Team plan: custom, contact sales | /pricing |
| Company and data | GDPR-grade data protection and a DPA for every customer, for EU and US teams | Not stated on the pages checked | — |
| Model | Standalone Inbox Reputation Autopilot | Standalone warm-up | — |
Competitor details change. If something here is out of date, tell us at welcome@roxinbox.io and we'll correct it.
Where Warmbox is stronger
- Fully custom warm-up schedules (growth, flat, random or custom) if you want manual control.
- A free blacklist and DNS test.
Where RoxInbox is stronger
- Per-provider inbox placement tests included, not just a spam score.
- An adaptive ramp that changes daily with spam signals, instead of a schedule you maintain.
- An inbox-ready guarantee per mailbox, and GDPR-grade data protection with a DPA.
- Network coverage of Mail.ru and GMX / WEB.DE, with no provider above 40%.
Switching from Warmbox
- Run the free domain health check on each sending domain.
- Connect the same mailboxes to RoxInbox. Warm-up reputation belongs to the mailbox, not the tool, so nothing is lost.
- Turn off warm-up in Warmbox once RoxInbox is running, to avoid doubling warm-up volume.
- Run a placement test in the first week as your baseline, then compare on day 21.
See the best email warm-up tools compared for other options.
FAQ
RoxInbox vs Warmbox questions
Is RoxInbox a Warmbox alternative?
Yes. RoxInbox covers the same core job, warming up mailboxes and checking where email lands, and adds per-provider placement tests on every network provider, an inbox-ready guarantee and GDPR-grade data protection.
Is RoxInbox cheaper than Warmbox?
RoxInbox's All-in-one plan is priced from $15 per mailbox per month, down to $9.50 at 101-150 mailboxes; 20% off annually, with placement tests, DNS audit and blacklist checks included. Compare that with Warmbox's current price on its own pricing page; the table above shows what we found on 14 October 2026.
Can I move my mailboxes from Warmbox to RoxInbox?
Yes. Connect the same mailboxes to RoxInbox, let it run its DNS audit, then turn off warm-up in Warmbox. Running two warm-up networks on one mailbox at once doubles warm-up volume, so switch rather than overlap for more than a few days.
Try RoxInbox on one mailbox.
Connect a mailbox, run a placement test and compare for yourself.