Under Postfix, the following is displayed when an email is sent to a distribution list:
Unmatched Entries
1 Jan 18 21:24:00 hostname1 postfix/cleanup[104719]: 8ED63CEB33C1: to=address@domain.tld, relay=none, delay=0, delays=0/0/0/0, dsn=2.0.0, status=deliverable (aliased to multiple recipients)
In my opinion, it is not necessary to display this under unmatched entries.