Implementing SRS with Mailcow

Preface Mailcow is an awesome self-hosted, container-based email solution. SRS (Sender Rewriting Framework) (from Wikipedia): For a mail transfer agent (MTA), the Sender Rewriting Scheme (SRS) is a scheme for rewriting the envelope sender address of an email message, in view of remailing it. In this context, remailing is a kind of email forwarding. SRS was devised in order to forward email without breaking the Sender Policy Framework (SPF), in 2003....

December 30, 2020 · 4 min · alj