Exactly as the title says. If you're unchecking E-mail Data for your backups, and then using rsync or another mechanism to backup email data, assume that your backups do not contain Roundcube data.
This is a super sharp edge because imap data can be enormous and often on busy servers needs to be transferred out-of-band from the DirectAdmin backup suite, but roundcube.xml is typically small enough that it should be included almost always in the tarball.
This is a super sharp edge because imap data can be enormous and often on busy servers needs to be transferred out-of-band from the DirectAdmin backup suite, but roundcube.xml is typically small enough that it should be included almost always in the tarball.