Tool comparison · Head to headUpdated 9/4/2026
Mailbutler vs Warmup Inbox
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 | Warmup Inbox |
|---|---|---|
| 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 | ||
| Email warmup | ||
| Cold email sequence | ||
| Language warmup | ||
| ESP warmup tool | ||
| IP warmup | ||
| Spam & Category monitoring | ||
| Email reputation Check | ||
| Human-like AI generated content | ||
| Developers API |
Available
Partial/Limited
Not Available
04Ecosystem
Native integrations.
Mailbutler
GmailApple MailOutlook
Warmup Inbox
Gmail & WorkspaceOutlook & Microsoft 365Zoho MailAmazon SESMailgunSendGridSendinblue (Brevo)Any inbox with SMTP
Skip the research
Let us handle it.
We manage the infrastructure, deliverability, and campaigns. You get results without the tool research.
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.