Meet E-Warmup. Warmup that monitors, tests, and repairs.
Warmbox warms inboxes. That's it. No inbox placement tests, no sender reputation monitoring, no AI blacklist removal, no free plan. E-Warmup adds all of it, plus Free Forever access before you pay.
Warmbox does not offer a free trial.
E‑Warmup lets you prove placement and reputation gains before you pay — no credit card required
- 5,000+ real inboxes
- Free Forever, no card
Free Forever Includes
Automated sending
Sends emails automatically
Real-time deliverability monitoring
See your inbox health at a glance
DNS score tests (SPF/DKIM/DMARC)
Verify your DNS records are set up correctly
Inbox placement tests
Verify your emails are landing in the primary inbox
AI-adaptive warmup content
Your warmup content adapts to your domain health in real time
No card. No expiry. No paywall to test it.
Why Teams Switch from
Warmbox to E‑Warmup
Warmbox warms. We warm, monitor, test, and repair.
Free Forever, not paywalled
Warmbox has no free plan. E‑Warmup starts free, no card, no expiry.
Inbox placement testing built in
25 tests/month on Growth. Warmbox doesn't offer placement testing at any tier.
AI blacklist removal
Warmbox detects blacklisting. E‑Warmup removes you automatically.
Sender reputation tracking
Continuous reputation score across providers. Warmbox shows a spam score only.
Bounce protection built in
Warmup bounces hurt reputation. E‑Warmup blocks them. Warmbox doesn't.
More volume at every tier
Growth: 300/day per mailbox vs Warmbox Start-up at 250/day shared.
Same Starting Price.
Different Depth.
Both start at $19/month for one inbox — E‑Warmup layers in diagnostics, tests, and automated repair Warmbox does not ship.
E‑Warmup Lite — $19/month
Same $19 entry — with monitoring, tests, and AI repair in the box
AI warmup that adapts to live domain health signals
Placement tests + sender reputation on Lite
Auto blacklist removal, not just detection
Warmup bounce protection built in
Full trial with no credit card
Warmbox Starter — $19/month
No free trial — pay before you validate results
Recipe warmup — not adaptive AI like E‑Warmup
No inbox placement testing at any tier
No dedicated sender reputation score tracker
No warmup-specific bounce protection
Blacklist check only — no AI removal workflow
Annual plan cheaper on paper ($15/mo yearly)
Growth vs Start-up: Head to Head
3 inboxes side by side. $20 more on E-Warmup buys 4 features Warmbox doesn't offer.
9/11rows favor E‑Warmup Growth on capabilities in this table
Warmbox Start-up $79/mo 3 inboxes | ||
|---|---|---|
| Monthly price | $99 | $79 |
| Mailboxes included | 3 | 3 |
| Warmup emails/day per mailbox | 300 | ~83 (250 shared) |
| Free Forever plan | Included | None |
| Free trial | Free Forever instead | None |
| Inbox placement tests | 25/month | Not offered |
| AI blacklist removal | Auto | Detection only |
| Sender reputation monitoring | Continuous | Spam score only |
| Warmup bounce protection | Built in | Not offered |
| AI-adaptive engine | Live domain signals | GPT-4 content only |
| Mailbox limit increase add-on | Available | Not offered |
Warmbox Start-up is $20/mo cheaper — E-Warmup Growth adds placement tests, AI blacklist removal, bounce protection, and 3.6x per-mailbox volume. Warmbox pricing verified from warmbox.ai/pricing, May 2026. Monthly billing shown. Subject to change. | ||
Warmbox stops at warmup. E-Warmup keeps going.
Inbox placement tests, sender reputation monitoring, AI blacklist removal, and bounce protection. Four features Warmbox doesn't offer at any tier. Start with Free Forever to see what they do.
Start Your Free Trial