OK , so I can see that there is this doveadm backup..

I don't use any MailDir on each account.. but all the emails are stored into the folder /var/www/mail  ( user 1 , user2, etc... )

in that case, a very basic backup would be  : doveadm backup /var/www/mail  /var/backup/folder  ?

( I prefer to ask before trying, because If break something.. here, they will kill me  :-( )

Why not doing an rsync of the folders ? Will it damage the index file ?

On 2/11/22 12:33, Jorge Bastos wrote:

Howdy,

I have a particular situation where I have about 5 users using a large account in IMAP, and I have the need to backup the account daily or weekly or so.
I was thinking about to copy the whole directory, each email is a file, it could probably work, but the dovecot index files would be damaged/wrong.

Is there a tool that could perform a backup (ex: yesterday), and when I inserted that backup, it just insert the emails and folders that were deleted today?

Thanks in advanced,
Jorge