Hello good folks I have recently brought my very first mailserver online, and have been testing it for the past month or so. Since the setup needs to be redundant, I have also brought a secondary mailserver online on it's own domain, and everything seems to run smoothly.
It's a Debian, Postfix, Dovecot, postfixAdmin, SQLGrey and Squrriel Mail setup, with virtual users only, and MySQL as the central component. The database is what my question is about. As far as I know, the best way to fight of spam and backscatter, is if the backup MX uses the same database as the primary. I've been reading up on the subject, but seems to lack the experince to take a dissicion on what way to keep the backup MX database updated. It does not need to be real-time, or anywhere close to it. For this setup twice a day will probably be fine. So, I guess my question is: How do you, good and experienced folks, keep your backup MXs updated? I've looked at two solutions so far: MySQL Replication, which seems a bit dodgy, with the risk of silent data corruption. Bash scipting with rsync could do the job, but seems like a less clean solution. Thank you for your time
