jarno / README.md

Postfix/Dovecot/Opendkim server transfer (RHEL 8 -based) 1. Sync user accounts, UIDs, GIDs and passwords should be identical on both servers 2. Required packages: ``` epel-release postfix dovecot certbot pypolicyd-spf python3-authres opendkim opendkim-tools perl-Getopt-Long ``` 3. Create user for policyd-spf: ``` adduser policyd-spf --user-group --no-create-home -s /bin/false ``` 4. Sync application configurations: ``` rsync -arv /etc/letsencrypt/ <ip>:/etc/letsencrypt/ rsync -arv /etc/opendkim/ <ip>:/etc/opendkim/ rsync -arv /etc/postfix/ <ip>:/etc/postfix/ rsync -arv /etc/opendkim.conf <ip>:/etc/opendkim.conf rsync -arv /etc/dovecot/ <ip>:/etc/dovecot/ ``` 4. Sync mail data: ``` rsync -avr /var/spool/mail/ <ip>:/var/spool/mail/ rsync -avr /var/spool/mail/ <ip>:/var/spool/mail/ rsync -avr /var/spool/mqueue/ <ip>:/var/spool/mqueue/ rsync -avr /var/spool/clientmqueue/ <ip>:/var/spool/clientmqueue/ rsync -avr /var/spool/opendkim/ <ip>:/var/spool/opendkim/ rsync -avr /var/spool/postfix/ <ip>:/var/spool/postfix/ ```