Auto delete all sent emails from many mailboxes

ziffzuh

Hello, I’m looking to set up Mailcow primarily as an SMTP relay for automated devices like scanners, software notifications (“noreply” type stuff), etc - and I need a way to designate for these mailboxes to auto delete / not store sent messages. Is there any way to do this from within the Mailcow UI? If it has to be done with cron/expunge, is there a way to at least have it fetch the list of mailboxes without having to manually designate them all in the script?

DocFraggle

I guess you could do that with a sieve rule, but I’m not a sieve expert. Here’s what you can do from the CLI:

Retrieve all mailboxes with a ‘Sent’ folder and delete mails older than 5 minutes:

for mailbox in $(docker-compose exec dovecot-mailcow doveadm mailbox list -A | grep Sent | awk '{print $1}')
do
  docker-compose exec dovecot-mailcow doveadm expunge -u "$mailbox" mailbox 'Sent' savedbefore 5m
done