Welcome to Mailr - free open source webmail

Mailr is an open source webmail application written in Ruby which uses Ruby On Rails web application framework. The application is tested with Courier-IMAP and Dovecot but it should be possible to use it with any other IMAP server.






  • Uses IMAP protocol
  • Caches IMAP server connections
  • HTML and plaintext message composition
  • Addressbook (contacts) with possible import from CSV file
  • Ajax based autocomplete of email addresses
  • Mail filters based on Maildrop
  • i18n


Mailr is free and unencumbered public domain software. For more information, see http://unlicense.org/ or the accompanying UNLICENSE file.