Ive hosted my own email for years now, and only recently have I started receiving failure notices that I have not sent. Below is an example of a header Hi. This is the qmail-send program at ...
Is there a way to modify the hostname or, more precisely, remove the defaulthost from the address? When I'm sending mails issuing qmail-inject the recipient gets mails from an address like this: ...
Is there a way to block port 25 for everything but mail communication? Had no luck finding an answer to this yet. Maybe it's possible to block every application but those related to above usage? I am ...