i have exchange 2007 servers and 2013 servers.
actually i have migrate 50% of users.
i have about 200 mailbox used only with pop3, how i can migrate them on exchange 2013 and keep the same pop3 configurtion (pop3 server and smpt server).
==> i have keep a test, i migrate one mailbox to exchange 2013, and when my application pop the mail i have this error: Invalid login to corporate E-mail Server for username toto.
the problem dissapear if i change the pop3 server from an exchange 2007 to exchange 2013 server.
i use actually this adress for pop3: pop.domain.com, this adress is a load balancer and this load balancer is redirected to 3 exchange 2007 cas server with pop3.
thank for help