i lost email 3GB because the backup not working
with capacity 3GB from total 7 GB
i do full Backup compressed using backup BETA
(this is test account actually, i fill the email about 3GB to test - text email with some jpg attachment, to simulate normal email activity)
after backup the file size at full backup manual folder file size about 1.7GB
then i remove the real account
then i restore it using backup BETA-->restore
it only restore 256MB and some trouble in roundcube mail with PLAIN AUTH error
then i fix it with change password
after that, i login to my mail box...
viola... no inbox only sent and spam folder.
email restored 256 MB only w/o inbox