ISPConfig 3 mail forward issue
I am running ISPConfig 18.104.22.168
Everything seems to work fine so far, except email forwarding. I searched the forums (not very well, apparently) and found some references to the need to compile maildrop instead of just install the package or it won't work properly, but not enough specifics.
Anyway, here is the crux of the problem from the mail log:
Nov 6 11:23:45 c1 postfix/pipe: 34F0F1FE5C: to=<email@example.com>, relay=maildrop, delay=0.28, delays=0.14/0.02/0/0.12, dsn=5.1.1, status=bounced (user unknown. Command output: Invalid user specified. )
Can someone point me in the right direction on how to configure this properly?