[Dovecot] doveadm purge on clusterfs

Since doveadm service proxying apparently doesn't work with dovecot v2.0, we need to find a way to safely run doveadm purge on the host the user is logged into.

Would it be OK to run purge in the pop/imap postlogin scripts? We already do a conditional:

test /var/log/activemailaccounts/imap/$USER -ot /var/log/activemailaccounts/today then touch /var/log/activemailaccounts/imap/$USER fi

so adding a:

doveadm purge -u $USER

in this section would make it run once every day the users that log in. Does that sound like an OK solution?

-jf