Sending only 1 quarantine report to user
Currently the quarantine digest sends a report to very e-mail adres that is configured as a user.
When user1 had 1 email address it gets 1 report
When user2 has 3 email addresses it gets 3 quarantine reports these other two are duplicates, so only need to be send once.
William de Vos - IMPROVES B.V. commented
when user1, user2 and user3 have all 3 the same email address the quarantine digest is sent 3 times to the same mail address.