Lemwarm vs Mailwarm: Email Warmup Tool Comparison
Compare Lemwarm and Mailwarm side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Lemwarm and Mailwarm are both email warmup tools for improving deliverability, but they differ in price and approach. Lemwarm starts at $29/mo and uses a network of 20,000+ healthy domains with industry-tailored warmup clusters. Mailwarm starts at $79/mo and includes a deliverability expert on every plan with progressive volume ramp-up.
Key takeaways
- Lemwarm's entry-level Essential Plan costs $29/mo per email account, while Mailwarm's Starter plan costs $79/mo for one mailbox and one user.
- Lemwarm offers 3 pricing tiers (Essential, Smart, Custom) compared to Mailwarm's 4 tiers (Starter, Growth, Scale, Tailored Plan).
- Lemwarm builds sender reputation using a warm-up network of 20,000 or more healthy domains, while Mailwarm generates engagement across a network of aged real inboxes.
- Mailwarm's Starter plan supports up to 50 warmup emails per day, and its Scale plan at $549/mo supports up to 500 warmup emails per day for 10 mailboxes and 5 users.
- Lemwarm is free with any lemlist subscription, and both tools integrate with Gmail, Google Workspace, Outlook, and Microsoft 365.
Reviewed and updated September 2, 2026
Lemwarm vs Mailwarm: Email Warmup Tool Comparison
If you are comparing email domain warming and deliverability tools, Lemwarm and Mailwarm will likely both appear on your radar. They share some surface-level similarities, but the details reveal important differences in pricing, capability, and target audience.
The Quick Answer
By each vendor's own wording, Lemwarm lists automated email warmup with human-like interactions and warm-up network of 20,000+ healthy domains, while Mailwarm lists b2b & b2c warm up and spam score monitoring. A capability both offer can appear under different names, so read both feature lists below.
Lemwarm offers a lower entry point at $29/mo compared to Mailwarm at $79/mo.
If your priority is building sender reputation and improving inbox placement, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Lemwarm is Email warmup tool from lemlist that builds sender reputation using a network of 20,000+ healthy domains, with industry-tailored warmup clusters and deliverability scoring.
Mailwarm is Email warmup and deliverability platform that generates engagement across a network of aged real inboxes and includes a deliverability expert on every plan. Each interaction produces several positive signals, such as marking as non-spam, opening, marking as important and replying.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Essential Plan
Starter
Lemwarm Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Essential Plan | $29/mo | per email account | Warm-up network of 20k+ healthy domains |
| Smart Plan | $49/mo | per email account | Everything in Essential plan |
| Custom | Contact Sales | More than 10 users? | Everything in Smart plan |
Source: Lemwarm Pricing
Mailwarm Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $79/mo | 1 mailbox/SMTP to warm; 1 user | Up to 50 warmup emails/day |
| Growth | $189/mo | 3 mailboxes/SMTPs to warm; 2 users | Up to 200 warmup emails/day |
| Scale | $549/mo | 10 mailboxes/SMTPs to warm; 5 users | Up to 500 warmup emails/day |
| Tailored Plan | Contact Sales | unlimited mailboxes, users | unlimited warmup emails, and replies |
Source: Mailwarm Pricing
Pricing Analysis
Lemwarm is more affordable at the entry level ($29/mo vs $79/mo). For teams with tight budgets or those just getting started with email domain warming and deliverability, this price difference matters.
Mailwarm offers 4 pricing tiers compared to Lemwarm's 3, giving you more granularity as you scale.
Features Breakdown
- Automated email warmup with human-like interactions
- Warm-up network of 20,000+ healthy domains
- Industry-tailored warmup clusters for natural patterns
- Deliverability score out of 100
- Technical setup checker (SPF, DKIM, DMARC)
- Personalized warmup using your real email templates (Smart plan)
- and 2 more listed below
- B2B & B2C warm up
- Spam score monitoring
- Provider-Level warmup
- Warmup your email content
- Authentication fix tools
- No IMAP access required
- and 3 more listed below
Lemwarm Key Features
- Automated email warmup with human-like interactions
- Warm-up network of 20,000+ healthy domains
- Industry-tailored warmup clusters for natural patterns
- Deliverability score out of 100
- Technical setup checker (SPF, DKIM, DMARC)
- Personalized warmup using your real email templates (Smart plan)
- Custom deliverability alerts and recommendations
- Free with any lemlist subscription
Mailwarm Key Features
- B2B & B2C warm up
- Spam score monitoring
- Provider-Level warmup
- Warmup your email content
- Authentication fix tools
- No IMAP access required
- Progressive volume ramp-up to avoid spam filters
- SPF, DKIM, and DMARC validation
- Blacklist detection across major databases
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Lemwarm
- Automated email warmup with human-like interactions
- Warm-up network of 20,000+ healthy domains
- Industry-tailored warmup clusters for natural patterns
- Deliverability score out of 100
- Technical setup checker (SPF, DKIM, DMARC)
- Personalized warmup using your real email templates (Smart plan)
- Custom deliverability alerts and recommendations
- Free with any lemlist subscription
Listed only by Mailwarm
- B2B & B2C warm up
- Spam score monitoring
- Provider-Level warmup
- Warmup your email content
- Authentication fix tools
- No IMAP access required
- Progressive volume ramp-up to avoid spam filters
- SPF, DKIM, and DMARC validation
- Blacklist detection across major databases
Integration Ecosystem
Lemwarm Integrations
Lemwarm connects with: Gmail, Google Workspace, Outlook, Microsoft 365, SMTP, lemlist (native), HubSpot (via lemlist), Salesforce (via lemlist), Pipedrive (via lemlist).
Mailwarm Integrations
Mailwarm connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Yahoo, Custom SMTP.
Shared Integrations
Both tools integrate with: Gmail, Google Workspace, Outlook, Microsoft 365.
Integrations listed only by Lemwarm: SMTP, lemlist (native), HubSpot (via lemlist), Salesforce (via lemlist), Pipedrive (via lemlist).
Integrations listed only by Mailwarm: Yahoo, Custom SMTP.
Use Case Recommendations
Best Fit for Lemwarm
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Mailwarm
- Teams that need a wide feature set (9 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Feature Comparison Summary
| Feature | Lemwarm | Mailwarm |
|---|---|---|
| Starting Price | $29/mo | $79/mo |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 9 |
| Integrations | 9 | 6 |
| Founded | 2018 | N/A |
Getting Started Checklist
- Define your email domain warming and deliverability requirements and monthly budget
- Estimate your expected warmup email volume to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Lemwarm and Mailwarm both serve the email domain warming and deliverability market. Lemwarm offers a more accessible entry point at $29/mo, while Mailwarm starts at $79/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Lemwarm and Mailwarm for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Lemwarm or Mailwarm?
- Lemwarm is cheaper at the entry level, starting at $29/mo compared to Mailwarm's $79/mo starting price. This price difference matters most for teams with tight budgets or those just getting started with email domain warming and deliverability.
- What is the main difference between Lemwarm and Mailwarm?
- Lemwarm is an email warmup tool from lemlist that builds sender reputation using a network of 20,000 or more healthy domains, with industry-tailored warmup clusters and deliverability scoring. Mailwarm generates engagement across a network of aged real inboxes and includes a deliverability expert on every plan.
- Does Mailwarm include support from a deliverability expert?
- Yes, Mailwarm includes a deliverability expert on every plan, from the $79/mo Starter tier up through the Tailored Plan. This is listed as a core part of Mailwarm's platform alongside its aged real inbox network.
- How many pricing tiers do Lemwarm and Mailwarm each offer?
- Lemwarm offers 3 pricing tiers: Essential at $29/mo, Smart at $49/mo, and a Custom plan for teams with more than 10 users. Mailwarm offers 4 tiers: Starter at $79/mo, Growth at $189/mo, Scale at $549/mo, and a Tailored Plan with unlimited mailboxes and users.
- What integrations do Lemwarm and Mailwarm support?
- Both tools integrate with Gmail, Google Workspace, Outlook, and Microsoft 365. Lemwarm additionally connects via SMTP and natively with lemlist, plus HubSpot, Salesforce, and Pipedrive through lemlist, while Mailwarm also supports Yahoo and Custom SMTP.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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