- Edited
When you encounter postfix lookup errors, there are 2 options:
remove this line
skip_name_resolve=ON
from/etc/my.cnf.d/grommunio.cnf
and restart mariadb and postfix.verify this 4 Postfix lookup files:
ls -1 /etc/postfix/grommunio-*.cf | sort /etc/postfix/grommunio-bcc-forwards.cf /etc/postfix/grommunio-virtual-mailbox-alias-maps.cf /etc/postfix/grommunio-virtual-mailbox-domains.cf /etc/postfix/grommunio-virtual-mailbox-maps.cf
cat /etc/postfix/grommunio-*.cf | grep hosts
The hosts string must belocalhost
like:hosts = localhost
, if you see127.0.0.1
change ist tolocalhost
and restart mariadb and postfix.
Reason:skip_name_resolve=ON
disables name resolution for Maria DB, so127.0.0.1
do not get resolved aslocalhost
any longer.