for personal mail the advantage in Maildir is incremental backups acting on the file system level are efficient. With an mbox file or sqlite db the whole file h

for personal mail the advantage in Maildir is incremental backups acting on the file system level are efficient. With an mbox file or sqlite db the whole file has to be backuped and transfered again. Of course for backup/snapshot mechanisms working on the block level one big file does not matter.