On Tue, Sep 11, 2012 at 2:18 AM, John R Pierce <pierce at hogranch.com> wrote: > > > also, postfix is a mail transfer agent, it doesn't implement the user > reader side like IMAP or POP, it just transfers messages. another > package, such as dovecot or cyrus, is used as a client agent for reading > email via pop or imap protocols, and its in one of these packages that > the email folder format is normally defined. On the postfix side of things you can probably configure the mail addresses controlling future deliveries to do whatever you want. There are many options and the details will depend on what you have and what you want. Already-delivered mail messages are no longer controlled by postfix. There are programs to move messages from one imap account to another if you need to move between servers or server types. Imapsync will do one account at a time, given the servers, logins, and passwords. I think the cyrus tools have something to move all accounts. -- Les Mikesell lesmikesell at gmail.com