Mailu is a versatile and straightforward mail server offered through a collection of Docker images, designed as free and open-source software that encourages user feedback and contributions. The objective of this project is to deliver an easy-to-install and maintain mail server that is comprehensive and avoids the inclusion of proprietary tools or unrelated features that are frequently part of mainstream groupware solutions.
Key functionalities of Mailu encompass:
A standard email server setup supporting IMAP and IMAP+, SMTP, and Submission with automated configuration profiles for various email clients.
Sophisticated email capabilities, including aliases, domain aliases, and custom routing options.
Web-based access featuring multiple webmail interfaces alongside an administrative dashboard.
User-centric functionalities such as aliases, auto-reply, auto-forward, and the ability to fetch accounts from other servers.
Administrative features that cater to global management, making announcements, domain-specific delegation, and setting quotas.
Robust security measures that enforce TLS protocols, integrate DANE and MTA-STS, utilize Let's Encrypt for certificates, provide outgoing DKIM signatures, and incorporate an anti-virus scanner alongside Snuffleupagus for enhanced protection against malware and harmful attachments.
Effective anti-spam tools that include auto-learning algorithms, greylisting techniques, DMARC and SPF support, and measures to prevent email spoofing.
Overall, Mailu stands out as a comprehensive solution for users seeking a reliable and secure mail server environment.