Any outgoing firewall which may block outgoing traffic?
Check your exim logs to see what it says there.
I was using DA firewall setting, all ports are normal (as default). I also forwarded all ports at the gateway.
please see the latest exim mainlog below:
2021-02-20 15:00:59 1lDYR1-0058eI-LY ** %external_email_address%@server.myserver.com <
[email protected]> F=<
[email protected]>: Unrouteable address
2021-02-20 15:00:59 cwd=/etc/csf 4 args: /usr/sbin/sendmail -f root -t
2021-02-20 15:00:59 1lDYR1-0058eM-Lj <= <> R=1lDYR1-0058eE-KY U=mail P=local S=2074 T="Mail delivery failed: returning message to sender" from <> for
[email protected]
2021-02-20 15:00:59 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1lDYR1-0058eJ-LP
2021-02-20 15:00:59 1lDYR1-0058eE-KY Completed
2021-02-20 15:00:59 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f <> -E1lDYR1-0058eI-LY
2021-02-20 15:00:59 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1lDYR1-0058eM-Lj
2021-02-20 15:00:59 1lDYR1-0058eJ-LP ** %external_email_address%@server.myserver.com <
[email protected]> F=<>: Unrouteable address
2021-02-20 15:00:59 1lDYR1-0058eJ-LP Frozen (delivery error message)
2021-02-20 15:00:59 1lDYR1-0058eM-Lj ** %external_email_address%@server.myserver.com <
[email protected]> F=<>: Unrouteable address
2021-02-20 15:00:59 1lDYR1-0058eM-Lj Frozen (delivery error message)
2021-02-20 15:00:59 1lDYR1-0058eQ-Ma <=
[email protected] U=root P=local S=680 T="lfd on server.myserver.com: Excessive resource usage: rpc (955 (Parent PID:955))" from <
[email protected]> for root
2021-02-20 15:00:59 1lDYR1-0058eS-Mk <= <> R=1lDYR1-0058eI-LY U=mail P=local S=2085 T="Mail delivery failed: returning message to sender" from <> for
[email protected]
2021-02-20 15:00:59 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1lDYR1-0058eS-Mk
2021-02-20 15:00:59 1lDYR1-0058eS-Mk ** %external_email_address%@server.myserver.com <
[email protected]> F=<>: Unrouteable address
2021-02-20 15:00:59 1lDYR1-0058eS-Mk Frozen (delivery error message)
2021-02-20 15:00:59 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1lDYR1-0058eQ-Ma
2021-02-20 15:00:59 1lDYR1-0058eI-LY Completed
2021-02-20 15:00:59 1lDYR1-0058eQ-Ma ** %external_email_address%@server.myserver.com <
[email protected]> F=<
[email protected]>: Unrouteable address
2021-02-20 15:00:59 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f <> -E1lDYR1-0058eQ-Ma
2021-02-20 15:00:59 1lDYR1-0058ea-Nm <= <> R=1lDYR1-0058eQ-Ma U=mail P=local S=2052 T="Mail delivery failed: returning message to sender" from <> for
[email protected]
2021-02-20 15:00:59 1lDYR1-0058eQ-Ma Completed
2021-02-20 15:00:59 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1lDYR1-0058ea-Nm
2021-02-20 15:00:59 1lDYR1-0058ea-Nm ** %external_email_address%@server.myserver.com <
[email protected]> F=<>: Unrouteable address
2021-02-20 15:00:59 1lDYR1-0058ea-Nm Frozen (delivery error message)