Hello,
I have a postfix server with a lot of emails for the last 8-10 years. The format is mdir and the pop/imap server is dovecot.

I would like to backup those very old emails in another location, but to be able to restore them easily if necessary.

There are more domains, each with more accounts. I would like to be able to restore in the right domain/accounts (ex: user1@domain1.com in /var/vmail/domain1.com/user1 and user2@domain2.com in /var/vmail/domain2/com/user2).

There are also sub-folders in every inbox. If I wouldn't take these into consideration it would be simple (I find email older then 1 year and mv them).

What would be the best approach?


Thank you

Is a email = 1 file ?
If yes, you could look this command who find file older in $1 directory than 5day and delete the file :
find $1 -mtime +5 -exec rm -f {} \;

rm command can be modified to mv...

yes, I thought about that.
I wondered if there was something more dedicated to this.