hello everyone, a little update on my problem. After inspection my problem occurs during file execution:
/usr/lib/postfix/configure-instance.sh
more precisely it is the command which does not execute:
openssl rehash “$dest_dir” >/dev/null 2>&1
So I executed this command manually on the folder:
openssl rehash /var/spool/postfix/etc/ssl/certs.NEW/
and restarted the startup of the instance and tada everything and got back to normal but hey I don’t really understand what happened.
on the other hand if someone can explain to me how to use postfix smtp with ipV6
or set up a relayhost because this bug happened because of the bad reputation of my provider’s IPv4 IP range
thanks to google translate for translation