Tool comparison · Head to headUpdated 9/4/2026
Mailbutler vs WarmupHero
A factual comparison of features, pricing, and capabilities.
01The contenders
Mailbutler
Mailbutler is an email extension for Gmail, Apple Mail and Outlook that adds email tracking, message templates, mail merge, smart follow-ups, AI compose, signatures, notes and tasks and team collaboration. Plans are per user per month billed in USD or EUR, with a free Starter plan.
Starting atCustom0
02Line by line
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
03Capabilities
Feature comparison.
| Feature | Mailbutler | WarmupHero |
|---|---|---|
| Email tracking with real-time notifications | ||
| Message templates | ||
| Mail merge | ||
| Smart follow-ups | ||
| Smart compose and smart improve (AI) | ||
| Smart timing | ||
| Email assignments and collaborator status | ||
| Notes and tasks | ||
| Automations | ||
| Signature marketing | ||
| exchange warm-up emails with REAL people | ||
| Understand where your emails are landing | ||
| Warm up your email domain progressively | ||
| Maintains conversation threads | ||
| Save your emails from spam and promotions | ||
| Put your own personalised email signature in your warmup emails | ||
| Runs 100% on autopilot. |
Available
Partial/Limited
Not Available
04Ecosystem
Native integrations.
Mailbutler
GmailApple MailOutlook
WarmupHero
SmartReach.ioOffice365SMTPIMAP
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.