postfix-script[1908]: fatal: mail system startup failed

Hi all,

On a VM migration (Proxmox -LXC) this particular VM doesn’t seem to be able to start Postfix. All I’m getting is :

Dec 27 21:45:53 postfix/master[1906]: fatal: daemon initialization failure
Dec 27 21:45:54 postfix/postfix-script[1908]: fatal: mail system startup failed

I’ve spend the couple of hours trying to read forums and follow various things but I gave up. It doesn’t start Postfix at all and only the above are in logs.

Any help is very much appreciated.

System is running Debian 9

postconf output:

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_percent_hack = no
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
compatibility_level = 2
home_mailbox = Maildir/
inet_protocols = all
mailbox_command = procmail -a “$EXTENSION”
mailbox_size_limit = 0
mydestination = $myhostname, localhost.$mydomain, localhost
mynetworks =
mynetworks_style = subnet
myorigin = /etc/mailname
recipient_delimiter = +
sender_bcc_maps = hash:/etc/postfix/bcc
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination check_policy_service inet:
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_sasl_auth_enable = yes
virtual_alias_maps = hash:/etc/postfix/virtual