Backup procedures

[Plutocrat]

I've had some success with restic to create incremental backups of mail directories on external storage. Very space efficient, and restic will handle all the de-duplication, pruning etc.

You could write a filter to exclude the dovecot index files, or just restore to a different directory before copying the mails you want back to their destination.

P.

On 12/02/2022 00.55, Stephane Magnier wrote:
> 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
>>
> 
> 
> .