Hi again,
I finished manual installation at debian11. Last was postfix. It was installed at my template vm before I start with grommunio. So I add g_alias.cf and g_virt.cf with mysql account credentials, I installed postfix-mysql. I discovered postfix not relay any emails. Local one from logwatch or fail2ban and from User GUI too. Test email is in Postausgang GUI folder and that is all. At mail.log I found:
Jun 26 19:38:29 grommunio postfix/pickup[8666]: 1020F400089: uid=0 from=<root>
Jun 26 19:38:29 grommunio postfix/cleanup[8668]: 1020F400089: message-id=20220626173829.1020F400089@grommunio.testdomain.local
Jun 26 19:38:29 grommunio postfix/cleanup[8668]: warning: connect to mysql server localhost: Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2)
Jun 26 19:38:29 grommunio postfix/cleanup[8668]: warning: mysql:/etc/postfix/g-alias.cf lookup error for "noc@realdomain.com"
Jun 26 19:38:29 grommunio postfix/cleanup[8668]: warning: 1020F400089: virtual_alias_maps map lookup problem for noc@realdomain.com -- message not accepted, try again later
I check mysql sock at /run/mysqld/mysqld.sock and it exists and port 3306 is open
Thank you for any answer.