Exim ignoring /etc/default/exim4

Terry M. Roy tech at futurecourse.com
Tue Aug 12 22:41:29 BST 2025


Hi,

I recently upgraded from Debian 12 Bookworm to Debian 13 Trixie.  After 
the upgrade and a reboot, Exim no longer listened on port 465. I 
verified that I had both ports 25 and 465 set in /etc/default/exim4 
SMTPLISTENEROPTIONS.

   SMTPLISTENEROPTIONS='-oX 25:465 -oP /var/run/exim4/exim.pid

I also verified that I had set tls_on_connect to port 465. I restarted 
again and I was still not able to connect.

With some trial and error, I ended up setting daemon_smtp_ports which 
had previously not been set since I was setting the reports in 
/etc/default/exim4.  A restart and exim was now listening on port 465.

I then tried to turn on debugging in /etc/default/exim4 with absolutely 
no luck.

It seems like exim is ignoring /etc/default/exim4. Is this a change, as 
in it is no longer used, or a bug?

I could find nothing about this issue after a duckduckgo search. My 
setup had been literally working for years before this upgrade.  Any 
insight would be appreciated.

-- 
Terry




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