[e-mail] How send ower some pop and imap accounts to another servers?
 

Hello!

I am changing to a new e-mail server for a ISP company. The old server run:
Sendmail + Uw-imap + qpopper

And the new server run:
Sendmail + Dovecot + Dovecot

+ the both are running Squirrelmail, procmail, spamassassin and Spamcop.

Now I wonder if you have som tip over how I should proceed for sending some of the user to the new server. the user itself should not now thats they are contacting a diffrent server (It will say thats it don't would be necessary to change the adress to the server in the users mail client).

I have got the smtp traffic working so this traffic go to another server and the sender don't notice thas it not the real server. Thats I do with a script some read from a file (with all peoples user name) and send the mail to this users.

But now I also need to get the imap and pop traffic to working at the same way. The old e-mail server are now overloaded and I can only do some small changes on it.

Is it possible to move the traffic (Imap and Pop) from the old server (with uw-imap and qpopper) to the new server (with dovecot)?

//Andreas

imap load balancing
 

I think that if you want to keep uw and dovecot, you probably want perdition.

I would like to put in a plug for cyrus for scalable imap/pop.