webmail

The premium Open Source alternative to Gmail

🎯 Best for:Users of Stalwart Mail Server seeking a modern, fast web interface.
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What is webmail?

Replaces traditional IMAP webmail clients and proprietary suites like Gmail. Utilizes the modern JMAP protocol for high-performance synchronization of mail, contacts, and calendars.

Tech Stack
TypeScriptEmail Clients & Services

Why webmail?

  • Modern JMAP architecture
  • Unified mail/calendar/contacts
  • High-performance UI

Limitations

  • Requires Stalwart backend
  • JMAP adoption is limited
  • Complex initial setup
3/17/2026
Last Update
0
Forks
8
Issues
Other
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to webmail instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Gmail)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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