Hello I am using Maildir for mail stores. For data HA purpose I backup all Maildir to second server via rsync -az.
In the second server I run the same software as main server such as postfix and dovecot. My question is, when main server is down, I change DNS records to point to the second server for MX and IMAP, will it work fine? Can the software read/write synced Maildir correctly to make email work? Thanks
