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On the recordRead 12 Oct 202615 facts
SquirrelMail
SquirrelMail · founded 1999
Plans and prices
SquirrelMail
Free
GPL licensed · self-hosted webmail; requires a web server with PHP and access to an IMAP server
Read 12 Oct 2026 · squirrelmail.org
On the record
- App coverage
- websquirrelmail.org · read 24 Sep 2026
- Browser compatibility
- Its pages render in HTML 4.0 without requiring JavaScript.squirrelmail.org · read 12 Oct 2026
- Calendar tools
- Yessquirrelmail.org · read 24 Sep 2026
- Core features
- The project lists MIME support, address books, and folder manipulation among its email-client features.squirrelmail.org · read 12 Oct 2026
- Customization
- The project lists 231 plugins in 14 categories, which administrators can use to customize installations.squirrelmail.org · read 12 Oct 2026
- Download versions
- The download page lists stable version 1.4.22 and daily stable and development snapshots.squirrelmail.org · read 12 Oct 2026
- Installation requirements
- The administrator manual lists a web server with PHP and access to an IMAP server that supports IMAP4rev1 as requirements.squirrelmail.org · read 12 Oct 2026
- Intended users
- The project describes use by end users whose employer, school, organization, hosting company, or ISP manages the installation.squirrelmail.org · read 12 Oct 2026
- License
- SquirrelMail is licensed under the GNU General Public License, and the project says there are no license fees.squirrelmail.org · read 12 Oct 2026
- Mail protocols
- It includes built-in PHP support for IMAP and SMTP.squirrelmail.org · read 12 Oct 2026
- Security
- The security page lists a 2025 XSS vulnerability affecting versions through 1.4.23-svn-20250401 and 1.5.2-svn-20250401.squirrelmail.org · read 12 Oct 2026
- Support
- The project directs end users and system administrators to different support resources and also links to commercial support.squirrelmail.org · read 12 Oct 2026
- What it does
- SquirrelMail is a standards-based webmail package written in PHP.squirrelmail.org · read 12 Oct 2026
