Migrate Google Apps mail to another domain in Zoho

Migrate Google Apps mail to another domain in Zoho

I have successfully setup my hosted mail under Zoho with a new domain. I would like to migrate the emails from my old domain which were hosted on Google Apps. I tried the IMAP migration but it fails. It has no username - password fields for the server which is normally imap.google.com. The same thing goes for POP. Any help will be appreciated. Thanks.