2009-10-19 14:01

To add mail subjects in Exim4 log (/var/log/exim4/mainlog), just change the /etc/exim4/exim4.conf.template file as following to add +subject to log_selector:

log_selector = MAIN_LOG_SELECTOR +subject

Then restart Exim:

/etc/init.d/exim4 restart
2009-10-19 14:01 · Tags: ,


  1. Great this was just what I needed, now I get T=[subject] in my logs.
    Thank you!


  2. That’s the wrong way to do it. The correct method is to:
    1. create or edit /etc/exim4/exim4.conf.localmacros and add
    MAIN_LOG_SELECTOR = +subject
    2. run update-exim4.conf
    3. and restart exim
    you’re not supposed to modify the template file directly as that will get overwritten.


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