for reasons that I cannot seem to divine, my postfix keeps trying to deliver messages to root to root@[MyISP].com, which of course is getting rejected as invalid username by the SMTP gateway at [MyISP].com. I cannot seem to figure out where its getting this [email protected] address from. I have a .forward file in /root/, and other stuff that uses mail command seems to get delivered properly. Where is this coming from?
Ubuntu 18.04 Any suggestions of how to fix would be appreciated.
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