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
:
.ifdef MAIN_LOG_SELECTOR log_selector = MAIN_LOG_SELECTOR +subject .endif
Then restart Exim:
/etc/init.d/exim4 restart