On Sat, 21 Sep 2024, Hilmar Preusse wrote: > The computer is running Windows 10, mail client is Betterbird. Another > computer > in the same network running Debian stable and Thunderbird can send mails, same > for the third (Debian stable and mail client mutt). All mail client use the > same > mail relay so I guess the relevant mail configuration should be equal.
To enable us to investigate errors or problems you should provide us with the following information (or as much of it as possible): * the IP, * the Time (including timezone), * the Message-Id, * the Addresses you sent from and to, * anything else that you think would help We maintain a system which receives and sends more than 1,000,000 mails a day. Without the information above we have little chance of finding out what went wrong. -- Don Armstrong https://www.donarmstrong.com Nothing is as inevitable as a mistake whose time has come. -- Tussman's Law

