There's a company that used V6 until now and just changed to V7. Everything else works quite well, except that some mails get duplicated now. This happens with messages that are sent BOTH to the user (firstname.lastname@domain.tld) AND to an alias user belongs to (listname@domain.tld). Before the change, no duplicate mails were generated. We cannot figure out the reason and difference other than switching from V6 to V7. Any idea if this is configurable via some option?
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