MailHeat vs ReachInbox: Email Warmup Tool vs Cold Email Platform Comparison
Compare MailHeat (email warmup tool) and ReachInbox (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare MailHeat (email warmup tool) and ReachInbox (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 4, 2026
MailHeat vs ReachInbox: Email Warmup Tool vs Cold Email Platform Comparison
MailHeat (email warmup tool) and ReachInbox (cold email platform) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
MailHeat is an email warmup tool for email domain warming and deliverability; ReachInbox is a cold email platform for cold email outreach. By each vendor's own wording, MailHeat lists secure smtp connection and health & activity dashboard, and ReachInbox lists unlimited e-mail accounts and unlimited ai warmup.
ReachInbox offers a lower entry point at $0/mo compared to MailHeat at $69.99/mo.
If your priority is building sender reputation and improving inbox placement, MailHeat is the one built for it; for sending campaigns that land in the inbox and generate replies, that is ReachInbox. Many teams run one of each.
Understanding the Core Difference
MailHeat is Inbox warmup and deliverability platform that simulates the positive engagement mailbox providers reward across a warmup pool, with gradual pacing, a per-inbox health dashboard and deliverability expert consulting on the higher tiers.
ReachInbox is Cold outreach platform that connects unlimited email accounts, warms them up, and runs AI-personalized campaigns from a unified inbox. Adds a lead finder, website visitor identification and inbox placement tests as separate product tabs.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Free Plan
MailHeat Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $69.99/mo | 1 account to warm (1 SMTP); 1 user | Up to 50 emails/day |
| Growth | $159.99/mo | Up to 3 accounts to warm (3 SMTPs); 2 users | Up to 200 emails/day per inbox |
| Scale | $479.99/mo | Up to 10 accounts to warm (10 SMTPs); 5 users | Up to 500 emails/day per inbox |
| Tailored Plan | Contact Sales | Unlimited accounts & SMTPs; unlimited users | Unlimited emails/day |
Source: MailHeat Pricing
ReachInbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free Plan | Free | 50 Active Leads/mo | 250 Emails/mo |
| Starter Plan | $39/mo | 2,000 Active Leads/mo | 10,000 E-mails/mo |
| Growth Plan | $99/mo | 50,000 Active Leads/mo | 250,000 Emails/mo |
| Pro Plan | $299/mo | 200,000 Active Leads/mo | 1 Million Emails/mo |
| Enterprise Plan | Contact Sales | 500,000 Active Leads | 1 M Emails Monthly |
Source: ReachInbox Pricing
Pricing Analysis
ReachInbox offers the lower entry point ($0/mo vs $69.99/mo). Teams watching their budget will appreciate the savings, especially when starting out.
ReachInbox offers 5 pricing tiers compared to MailHeat's 4, giving you more granularity as you scale.
ReachInbox includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Secure SMTP connection
- Health & activity dashboard
- Gradual warmup pacing
- Email & chat support
- Deliverability expert consulting
- Free Deliverability Audit
- and 2 more listed below
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- and 5 more listed below
MailHeat Key Features
- Secure SMTP connection
- Health & activity dashboard
- Gradual warmup pacing
- Email & chat support
- Deliverability expert consulting
- Free Deliverability Audit
- Success Manager
- Free tools
ReachInbox Key Features
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
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 MailHeat
- Secure SMTP connection
- Health & activity dashboard
- Gradual warmup pacing
- Email & chat support
- Deliverability expert consulting
- Free Deliverability Audit
- Success Manager
- Free tools
Listed only by ReachInbox
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
Integration Ecosystem
MailHeat Integrations
MailHeat connects with: SMTP, Gmail, Google Workspace, Microsoft 365, Outlook.
ReachInbox Integrations
ReachInbox connects with: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Integrations listed only by MailHeat: SMTP, Gmail, Google Workspace, Microsoft 365, Outlook.
Integrations listed only by ReachInbox: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Use Case Recommendations
Best Fit for MailHeat
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
- Agencies managing warmup across multiple client domains
Best Fit for ReachInbox
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | MailHeat | ReachInbox |
|---|---|---|
| Starting Price | $69.99/mo | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 8 | 11 |
| Integrations | 5 | 7 |
Getting Started Checklist
- Define your email domain warming and deliverability and cold email outreach requirements and monthly budget
- Estimate your expected warmup email volume and email sending 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
MailHeat serves the email domain warming and deliverability side of an outbound stack and ReachInbox the cold email outreach side. ReachInbox offers a more accessible entry point, while MailHeat starts at $69.99/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 MailHeat and ReachInbox for current information.
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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