iRedMail: an Open-source Mail Server for enterprise

iRedMail is a complete open-source mail suite that include a mail server, and a webmail client. It is built for enterprise use as it support Calendars management and sync, Contact Sync ActiveSync, CalDav and CardDav and more.

iRedMail plays well with the popular webmail client and groupware: SOGo Groupware, so If you are planning to have a mail suite consider using SOGo and iRedMail together.

It offers a rich-feature server backend, web-based dashboard and a webmail for email users.

System setup does not require more than several minutes and works smoothly with Linux and Unix  servers.

By default, iRedMail supports POP3, IMAP, SMTP over TLS and offers an outstanding webmail app with full HTTPS support.

Emails are encrypted using TLS and passwords are stored in SSH512 or BCRYPT.

iRedMail supports multiple domain, unlimited user accounts, mailing lists, multiple admins and unlimited mailboxes.

It is up to the system admin to choose where and how to store emails, as iRedMail supports OpenLDAP, MySQL, MariaDB, and PostgreSQL.

iRedMail offers a built-in and third-party spam and antivirus protection with support of SpamAssassin, ClamAV, SPF, DKIM, and built-in messages quarantine.

iRedMail comes in a free open-source edition and a pro edition with an advanced admin panel for enterprise users. We recommend starting with the basic open-source free edition before upgrading to the pro one.

Supported platform: Where can you install iRedMail?

iRedMail can be installed on Debian, Ubuntu, CentOS, Fedora, Red Hat Linux, FreeBSD and OpenBSD.

You can install iRedMail server with iRedMail Easy Platform which eases the installation and upgrade processes for system admins.

Features

1. Web admin
2. Webmail application with HTTPS support
3. Supports multiple backends
4. Easy to install
5. Docker support
6. Deploys on several operating systems
7. Calendars/Contacts/ActiveSync*
8. Supports other webmail systems like SOGo Groupware, Roundcube Webmail
9. Rich documentation
10. Supports POP3, IMAP, SMTP over TLS  
11. Multi-domain support
12. IP ban
13. mailbox quota configuration
14. LDAP support
15. Mail folders support
16. Auto-spam protection
17. Supports third-party antivirus and spam protection software
18. mailing list support
19. trash folder management
20. Full SOGo Groupware integration
21. Webmail customization
22. Third-party integration
23. Cluster support
24. Rich documentation
25. Packed by a strong community of developers and enterprise users.

License

iRedMail is released and distributed under GPL v3.

Resource

1. https://www.iredmail.org/index.html
2. https://github.com/iredmail/iRedMail
3. https://medevel.com/15-selfhosted-os-webmail-clients/