is there a command within exim4 (4.70-4.71) package (ubuntu) to display the message-id (exim's message-id) of delivered messages? (shows as Completed in /var/log/exim4/mainlog) ?
there is a
exim4 -bpu command for undelivered ones.
Purpose: Tell and proof user that his mail was accepted by remote smtp and all problems are not our's :) Size of log ~ 100 MB per day.