Hi I am havind same problem, when I send an email from any of the accounts in cyber panel to another in the same server no problem.
If i send one from gmail or any service outside the one in cyberpanel do not receive.
Help me please, anyone knows how to solve it?
Thanks
log states
root@fra ~]# journalctl -f | grep postfix
nov 22 17:23:28 fra.equitem.com postfix/smtpd[19243]: connect from mail-yb1-f170.google.com[209.85.219.170]
nov 22 17:23:29 fra.equitem.com postfix/smtpd[19243]: 7292EF12290A: client=mail-yb1-f170.google.com[209.85.219.170]
nov 22 17:23:29 fra.equitem.com postfix/smtpd[19243]: warning: connect to /var/log/policyServerSocket: No such file or directory
nov 22 17:23:30 fra.equitem.com postfix/smtpd[19243]: warning: connect to /var/log/policyServerSocket: No such file or directory
nov 22 17:23:30 fra.equitem.com postfix/smtpd[19243]: warning: problem talking to server /var/log/policyServerSocket: No such file or directory
nov 22 17:23:30 fra.equitem.com postfix/cleanup[19250]: 7292EF12290A: message-id=CANrz9yaO=LtuvNucutgh-hoW73w9zAQUnvOF49VntOH=e=LPrg@mail.gmail.com
nov 22 17:23:30 fra.equitem.com postfix/qmgr[17530]: 7292EF12290A: from=pedsolorzano@gmail.com, size=2902, nrcpt=1 (queue active)
nov 22 17:23:30 fra.equitem.com postfix/pipe[19252]: fatal: get_service_attr: unknown username: spamd
nov 22 17:23:30 fra.equitem.com postfix/smtpd[19243]: disconnect from mail-yb1-f170.google.com[209.85.219.170] ehlo=2 starttls=1 mail=1 rcpt=1 bdat=1 quit=1 commands=7
nov 22 17:23:31 fra.equitem.com postfix/qmgr[17530]: warning: private/spamassassin socket: malformed response
nov 22 17:23:31 fra.equitem.com postfix/qmgr[17530]: warning: transport spamassassin failure – see a previous warning/fatal/panic logfile record for the problem description
nov 22 17:23:31 fra.equitem.com postfix/master[17528]: warning: process /usr/libexec/postfix/pipe pid 19252 exit status 1
nov 22 17:23:31 fra.equitem.com postfix/master[17528]: warning: /usr/libexec/postfix/pipe: bad command startup – throttling
nov 22 17:23:31 fra.equitem.com postfix/error[19253]: 7292EF12290A: to=pedro@equitem.com, relay=none, delay=2.1, delays=1.1/1/0/0.01, dsn=4.3.0, status=deferred (unknown mail transport error)