The aim here is to detect a signature on the whole recipient addresses in messages.
The records can be a regular expression or a simple search with the "*" jocker character.
Spammers usually send messages to generic addresses such as "webmaster,postmaster, adrian, info, etudes, dmarc...".
It's very interesting to be able to control the sending of these messages
In our case, we'd like to reject them directly, as we don't use such addresses.
The “Recipient address” acls object is designed for that
(menuiserie|postmaster|adrian|info|etudes|dmarc|webmaster)@