Hi Robert, On Jun 10, 2013, at 8:23 AM, Robert Brockway <rob...@timetraveller.org> wrote: > I've done a variety of mail migrations over the years, including some that > were quite large (hundreds of thousands of accounts). I looked at a few > options when doing the first one and ended up concluding that pop/imap was > the best way to go. A specialised migration tool must be less tested (and > perhaps more buggy) than pop/imap servers that are in use around the world > constantly. By using pop/imap proxies we were able to do migrations that > were completely transparent to users.
I think this sounds very plausible - can you maybe elaborate a bit on how you did this exactly? Would you say that it even makes sense to use a proxy-based migration if you're moving from one Dovecot installation (serving just IMAP) to another? I'm just asking because I'm planning to replace a FreeBSD-based Dovecot setup (serving just IMAP) to Debian. I already have the Debian system set up, but I'm still undecided how to do the move in a way which is a) preferrably transparent to users and b) possibly even allows me to quickly switch back to the old system again, just in case. -- Frerich Raabe - ra...@froglogic.com www.froglogic.com - Multi-Platform GUI Testing
