> You may also have disabled recipient duplication. We will > never knwo unles yo reveal yur configration as described > in http://www.postfix.org/DEBUG_README.html#mail.
I've been looking at this a loooong time tonight. Despite my best efforts, I did not find a reason for the duplicate email. I even created my own content filter to rule out some kind of spamassassin/spamc/spamd miconfiguration. I'm still receiving emails twice with this customs content filter turned on (only once with the content filter turned ooff). I turned on verbose for cleanup and trivial-rewrite but there was so much output and much of it repetitive that it didn't help me determine what's going on. Here are postfix config file: https://pastebin.com/bZxjHF5y Hopefully something jumps out at you.
