On 2025/04/12 10:29 PM, Sander ter Steege via Exim-users wrote:
This is my first post to this list, so if I missed finding this info in a FAQ somewhere, please forgive me.
You're in the right place to be asking.
I’m configuring a new exim server (4.98 on Almalinux 9) to replace a really old one (4.63 on CentOS 5) and I’m running into problems when sending mail for authenticated users. I’ve checked if exim knows its local domains using exim -bt and it does recognise the local user without any problem. However when I try to send an email using a MTA exim adds the value of the primary_hostname after the authenticated username even if it contains a valid local email address and I’m completely puzzled why it would do this. So when I try to send an email from u...@example.com it works without a problem, but as soon as I try the same using Thunderbird as an MTA it changes the from to “u...@examle.com”@primary_hostname.com Does anyone have a hint where to start looking?
The Exim docs are at https://exim.org/docs.html - use the appropriate version for your exim binary, as you primary reference. Appending a domain is usually under the control of the "qualify_domain" option - but that only operates on "addresses that do not have a domain qualification". So, something else is doing this, and without an appropriate check. You could use the debug facilities to observe the processing done on a message, looking for the place the modification is applied. -- Cheers, Jeremy -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
