The only email warmup tool
that's actually free
AI-powered warmup, inbox placement testing, DNS monitoring, and deliverability intelligence — all included. 1 mailbox free forever. 5 mailboxes for $19/mo.
What others charge per inbox per month (as of July 2026)
MailReach
$25/inbox/mo
Lemwarm
$29/inbox/mo
Warmup Inbox
$19/inbox/mo
Mailwarm
$69/inbox/mo
$0
1 mailbox free forever — or 5 for just $19/mo
Mailbox free forever
Blacklists monitored
Deliverability monitoring
To get started
Everything you need for perfect deliverability
A complete suite of tools to warm, test, monitor, and protect your sender reputation.
AI Warmup Engine
Unique AI-generated multi-turn conversations that look and feel like real emails. No templates, no patterns.
Inbox Placement Testing
Test deliverability across 15+ providers in real-time. Know exactly where your emails land — inbox, spam, or promotions.
DNS Health Audit
Comprehensive SPF, DKIM, DMARC, MX, and BIMI checks with copy-paste fix recommendations.
Blacklist Monitoring
Continuous scanning across 70+ RBLs. Get instant alerts and step-by-step delisting instructions.
AI Copilot
Ask questions about your deliverability in plain English. Get AI-powered diagnostics and one-click fixes.
Adaptive Controller
ML-driven warmup that adjusts volume and timing based on live reputation signals. No manual tuning.
Up and running in minutes
Four simple steps from cold domain to warm inbox.
Connect
One-click OAuth for Gmail and Microsoft 365, or enter SMTP/IMAP credentials. Takes under 60 seconds.
Audit
We instantly check your SPF, DKIM, DMARC, MX records and scan 70+ blacklists. Fix issues before warming.
Warm
AI generates unique conversations with our curated inbox pool. Volume ramps adaptively based on reputation signals.
Monitor
Track your reputation score, inbox placement rates, and get AI-powered recommendations to maintain peak deliverability.
EmailWarmer.io vs. the rest
Competitor pricing verified from their public pages, July 2026. See the full comparisons.
| Feature | EmailWarmer.io | MailReach | Warmup Inbox | Lemwarm |
|---|---|---|---|---|
| Price (5 mailboxes) | $19/mo | $125/mo | $95/mo | $145/mo |
| Free plan | 1 mailbox forever | Trial only | ||
| Inbox placement tests | Included | Credit-metered | ||
| DNS audit (SPF/DKIM/DMARC) | Included | Checks | Checks | Setup check |
| Blacklist monitoring | 20 major RBLs | Alerts | ||
| AI deliverability copilot | ||||
| AI-generated conversations | Templates | |||
| Spam-folder rescue |
Free to start. Affordable to scale.
Every plan includes AI warmup, placement testing, DNS monitoring, and AI Copilot. No hidden fees, no per-feature upsells.
Free
Free forever
- 1 mailbox
- 20 warmup emails/day
- 1 placement test/week
- Basic DNS checks
- AI Copilot (10 msgs/day)
- Community support
Starter
- 5 mailboxes
- 100 warmup emails/day per inbox
- 20 placement tests/month
- Full DNS & blacklist monitoring
- Unlimited AI Copilot
- Email support
Pro
- 25 mailboxes
- 200 warmup emails/day per inbox
- 100 placement tests/month
- Full DNS + Google Postmaster
- Unlimited AI Copilot (priority)
- Read-only API access
- Priority support
Custom
For agencies & enterprise teams
- Unlimited mailboxes
- Custom warmup volume
- Unlimited placement tests
- White-label dashboard
- Dedicated IP pool
- Custom AI personas
- SSO & SAML
- Dedicated account manager
- SLA guarantee
All paid plans include a 14-day free trial. Cancel anytime. No questions asked.
Everything you need to land in the inbox
Purpose-built for teams that care about deliverability.
Built for deliverability teams
Authentication monitoring, reputation tracking, and warmup in one place — so your email actually reaches the inbox.
Inbox placement, measured
Test campaign templates against real seed accounts and see exactly which providers deliver, spam, or flag your mail.
Catch issues before they cost you
DNS, blacklist, and DMARC checks surface problems early — with clear, actionable guidance on how to fix them.
Works with every major provider
Frequently asked questions
Everything you need to know about EmailWarmer.io
Stop paying $25–$69 per inbox.
Start for free.
Warm up your first mailbox free — no credit card, no trial clock, cancel anytime.
- AI-powered warmup
- Inbox placement testing
- DNS & blacklist monitoring
- AI Copilot diagnostics
- No credit card required