Migration of cPanel site corrupts user mail

When migrating a website from a backup/archive created on a "WHM 10.8.0 cPanel 10.8.1-R30" system to Virtualmin Pro 3.01 (also experienced on 2.99), the users' mbox email is not translated correctly to Maildirs. The user accounts appear to be created correctly, and one or two email messages come across, but the remainder of the Maildir is filled with invalid 262 byte files that have some sort of empty MIME chunks inside. The original mbox from the cPanel tarball is also zeroed out.

Will forward example cPanel backup files under separate email cover for testing purposes.

Closed (fixed)