Mailwarm vs Warmforge: Email Warmup Tool Comparison
Compare Mailwarm and Warmforge side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Mailwarm and Warmforge are both email warmup tools, but they differ sharply on price and approach. Mailwarm starts at $79/mo with a deliverability expert on every plan and warms via a network of aged real inboxes. Warmforge starts at $12/mo per mailbox slot, using AI-written emails and a per-mailbox Heat Score to track progress.
Key takeaways
- Mailwarm's Starter plan costs $79/mo and covers 1 mailbox or SMTP for 1 user with up to 50 warmup emails per day.
- Warmforge's Email Warm Up plan costs $12/mo per slot, with 1 free slot included and 1 free placement test per month.
- Mailwarm offers 4 pricing tiers (Starter, Growth, Scale, and a Tailored Plan) compared to Warmforge's 3 tiers.
- Warmforge tracks a per-mailbox Heat Score and uses AI-written emails, while Mailwarm generates engagement through a network of aged real inboxes.
- Both tools share integrations with Gmail, Google Workspace, Outlook, and Microsoft 365, while Warmforge adds native integrations with Salesforge and Mailforge and Mailwarm adds Yahoo and Custom SMTP.
Reviewed and updated September 2, 2026
Mailwarm vs Warmforge: Email Warmup Tool Comparison
If you are comparing email domain warming and deliverability tools, Mailwarm and Warmforge 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, Mailwarm lists b2b & b2c warm up and spam score monitoring, while Warmforge lists email warm up and monitoring & health checks. A capability both offer can appear under different names, so read both feature lists below.
Warmforge offers a lower entry point at $12/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
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.
Warmforge is Email warm up tool from the Forge Ecosystem that warms mailboxes with AI-written emails and tracks a per-mailbox Heat Score. Adds DNS, MX and blacklist health checks, placement tests and automatic removal of warm-up mail that lands in spam.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Email Warm Up (per slot)
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
Warmforge Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Warm Up (per slot) | $12/mo | 1 slot covers 1 mailbox; 1 free slot included | Automated AI email warm up; 1 free placement test per month |
| Placement Tests Pro Plan | $39/mo | 50 mailboxes per test | 100 tests per month |
| Placement Tests Growth Plan | $169/mo | 250 mailboxes per test | Unlimited tests |
Source: Warmforge Pricing
Pricing Analysis
Warmforge offers the lower entry point ($12/mo vs $79/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Mailwarm offers 4 pricing tiers compared to Warmforge's 3, giving you more granularity as you scale.
Features Breakdown
- 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
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- and 2 more listed below
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
Warmforge Key Features
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
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 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
Listed only by Warmforge
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
Integration Ecosystem
Mailwarm Integrations
Mailwarm connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Yahoo, Custom SMTP.
Warmforge Integrations
Warmforge connects with: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Shared Integrations
Both tools integrate with: Gmail, Google Workspace, Outlook, Microsoft 365.
Integrations listed only by Mailwarm: Yahoo, Custom SMTP.
Integrations listed only by Warmforge: Salesforge (native), Mailforge (native).
Use Case Recommendations
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
Best Fit for Warmforge
- Budget-conscious teams looking for an affordable email warmup tool
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
- Agencies managing warmup across multiple client domains
Feature Comparison Summary
| Feature | Mailwarm | Warmforge |
|---|---|---|
| Starting Price | $79/mo | $12/mo |
| Top Tier Price | Contact Sales | $169/mo |
| Total Features Listed | 9 | 8 |
| Integrations | 6 | 6 |
| Founded | N/A | 2024 |
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
Mailwarm and Warmforge both serve the email domain warming and deliverability market. Warmforge offers a more accessible entry point at $12/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 Mailwarm and Warmforge for current information.
Frequently asked questions.
Frequently asked questions- Which is cheaper, Mailwarm or Warmforge?
- Warmforge is cheaper at the entry level, starting at $12/mo per mailbox slot, compared to Mailwarm's Starter plan at $79/mo for 1 mailbox or SMTP and 1 user. Warmforge's entry plan also includes 1 free placement test per month.
- What is the main difference between Mailwarm and Warmforge?
- Mailwarm generates engagement across a network of aged real inboxes and includes a deliverability expert on every plan, while Warmforge warms mailboxes using AI-written emails and tracks a per-mailbox Heat Score. Warmforge also adds DNS, MX, and blacklist health checks plus placement tests.
- Does Mailwarm or Warmforge have more pricing tiers?
- Mailwarm has 4 pricing tiers: Starter, Growth, Scale, and a Tailored Plan with custom pricing for unlimited mailboxes, users, and warmup emails. Warmforge has 3 tiers: Email Warm Up, Placement Tests Pro Plan, and Placement Tests Growth Plan.
- What integrations do Mailwarm and Warmforge support?
- Both tools integrate with Gmail, Google Workspace, Outlook, and Microsoft 365. Mailwarm additionally supports Yahoo and Custom SMTP, while Warmforge additionally offers native integrations with Salesforge and Mailforge.
- Which tool is better for budget-conscious teams?
- Warmforge is positioned as the better fit for budget-conscious teams looking for an affordable email warmup tool, given its $12/mo entry price. Mailwarm is better suited for teams that need a wide feature set, enterprise buyers wanting custom pricing, or organizations recovering from deliverability issues.
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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