Access mails on server after moving mail DNS

I've just moved mail for a domain over to Google Apps, from my web host. All is well, except for some mails in one account left on my host. I don't want to reverse all my dns changes just to retrieve these mails if I can get away without it.

My interface with my host is through Plesk, on a Virtuozzo instance. I'm asking here because I'm unable to contact my hosting provider.

From serverfault BradyKelly

• To switch all your traffic over to Google Apps, the only thing you need to do is update your MX records to point to their servers.

  I assume that this is what you did? Or did you update your A record for your existing MX records to point to the google server?

  If all you did was update your MX to point to the Google servers, then you should still be able to log into your old POP/IMAP server using the old settings.

  However if you updated your A records for your MX target (say, mail.example.com) to point to the Google IP address, then you've got a few options:

  1. Create a new A record (say, oldmail.example.com) to point to the IP address of the old mail server. Then connect to that.

  2. Point your mail client's POP settings to the IP address of old mail server (instead of mail.example.com, point it to x.x.x.x)

  From Farseeker

• Turns out this was quite easy. The old mail server, on my host, serves accounts for all domains, so I just changed the Outlook login to use the host domain name, not the old mail. subdomain, and I could download the mail.

  From BradyKelly