Postfix email server migration

Hi Guys,

I would like to ask some questions about email migration. I use rsync to migrate the messages to a new server. My question is, Is there a way that I can migrate a postfix email server messages to new server without having the email client (POP3) to re-download again the messages from the beginning?

Thanks in advance

 

Try imapsync: http://www.howtoforge.com/how-to-migrate-mailboxes-between-imap-servers-with-imapsync

 

Yes. Imapsync is good. But I require to know each users password. Is there any other way? Thanks.

 

Is not possible just dump the user database, and next copy all maildirs to the new server?

 

Yes it is possible. But the thing is, if you just transfer the messages via scp or rsync. The email clients will then redownload the messages from the very first email upto the latest. I wanted to avoid that issue without using imapsync. :-(