[Dovecot] Can Dovecot Proxy GMail?

Hi,

We are using gmail (google apps) across our company with most users using outlook (windoze) or evolution (linux) and imap/pop based on user preference. We are having issues in that our internet links are fairly slow and when users download mails they get frustrated with the time it takes and often get timeouts and issues where outlook fails to fetch a mail yet gmail thinks it was retrieved - users then complain of "missing" emails.

Is there a way that we could use dovecot (or similar?) to act as an imap "proxy" and users connect to dovecot while dovecot connects to gmail?

Thanks Paul