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SeaMonkey Mail

Germany

Plans and prices

SeaMonkey

Free

Free download · Windows x64, macOS x64, Linux x64

Every plan, in full

On the record

All-in-one suite
SeaMonkey combines a web browser, email and newsgroup client, feed reader, HTML editor, IRC chat and web development tools.seamonkey-project.org · read 12 Oct 2026
Current release
SeaMonkey 2.53.24 was released on July 28, 2026, and the project says automatic upgrades from earlier 2.53.x versions are enabled.seamonkey-project.org · read 12 Oct 2026
Download integrity
The project says Windows releases are distributed unsigned while it works on a new signing process, and advises users concerned about integrity to check provided checksums.seamonkey-project.org · read 12 Oct 2026
Email features
Mail supports multiple accounts, tabbed mail, adaptive junk mail controls, customizable tags and mail views.seamonkey-project.org · read 12 Oct 2026
Extensions
SeaMonkey supports add-ons and themes, with its add-ons website hosted by the Thunderbird project.seamonkey-project.org · read 12 Oct 2026
Feeds
The messaging center includes a reader for RSS and Atom feeds.seamonkey-project.org · read 12 Oct 2026
Profile warning
The release page warns that version 2.53.24 changes profiles in a way that cannot be reverted for versions earlier than 2.53.1 and advises making a full backup.seamonkey-project.org · read 12 Oct 2026
Project audience
The project says the suite may appeal to advanced users, web developers and corporate users.seamonkey-project.org · read 12 Oct 2026
Project governance
The SeaMonkey Association is a German nonprofit established in January 2012 that supports the SeaMonkey project.seamonkey-project.org · read 12 Oct 2026
Release support
The project supports only the latest stable version; older and unofficial releases are listed for historical reasons.seamonkey-project.org · read 12 Oct 2026
Security features
Mail & Newsgroups includes S/MIME, digital signing, return receipts, address books and LDAP support.seamonkey-project.org · read 12 Oct 2026
Support channels
Community support is available through a support mailing list, newsgroup, MozillaZine forums, IRC and Matrix.seamonkey-project.org · read 12 Oct 2026
Supported systems
The current release is available for Windows x64, macOS x64 and Linux x64; the project says 32-bit Windows and Linux builds ended with version 2.53.21.seamonkey-project.org · read 12 Oct 2026

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