Looking for a Warmbox Alternative?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 forever plan.
E‑Warmup lets you validate deliverability before you pay — no credit card required.
- 5,000+ real inboxes
- Free forever, no credit card required
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 Basic — $49/month
Warmup Multiple mailboxes
AI warmup that adapts to live domain health signals
Real-time Deliverability Monitoring
Auto blacklist removal, not just detection
Warmup bounce protection built in
Free Inbox Placement test
Warmup using specific topic and languages
Bring your own email copy
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
No Topic & language warmup
Add templates not available
Growth vs Start-up: Head to Head
Compared at 3 inboxes to match Warmbox's Start-up tier. $20 more on E-Warmup buys 4 features Warmbox doesn't offer.
10/11rows favor E‑Warmup Growth on capabilities in this table
Warmbox Start-up $79/mo 3 inboxes | ||
|---|---|---|
| Monthly price | $99 | $79 |
| Mailboxes included | 20 | 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 |
| Seedlist Warmup for no-SMTP senders | Included | 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. | ||
FAQsWarmbox alternative FAQs
Answers on pricing, shared vs per-mailbox volume, recipes vs advanced settings, and mailbox limits.
Yes, if you want more than warmup. Warmbox focuses on automated warmup. E-Warmup adds inbox placement testing, sender reputation monitoring, blacklist delisting and bounce protection in one plan.
For a single inbox, Warmbox's Solo plan is one of the cheapest options. Once you have several mailboxes, E-Warmup is usually cheaper: Basic is $49 per month for 5 mailboxes, and Growth is $99 for 20. E-Warmup also has a Free Forever plan for one mailbox.
Warmbox's multi-inbox plans share one daily volume across all inboxes. E-Warmup Growth gives each of its 20 mailboxes up to 300 warmup emails per day. Per-mailbox volume ramps each inbox faster.
E-Warmup lets you tune warmup with topic selection, your own templates and cycle settings, and ramps over 30 days: 15 days of progressive volume, then 15 days of randomized engagement. Recovery and maintenance suit longer-running mailboxes, which advanced settings cover.
Yes. E-Warmup tracks sender reputation continuously, monitors 100+ domain blacklists and runs automatic delisting from Basic upward. In our comparison, Warmbox offers a spam score and blacklist detection only.
Free Forever supports 1, Basic 5, Growth 20 and Premium 40. Growth and Premium can add extra mailboxes at $9 each, and the High Volume plan is unlimited.
Warmbox Solo is a good fit for one inbox when you only need warmup and don't need reputation monitoring or placement testing. Its recipe concept also works well for scenario-specific warmup.
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 for Free