In an older episode, on 2014-03-17 07:22, Thomas Harold wrote:
GMail has the ability where those users could setup GMail to pull from your POP3 server. There's no need for you to be forwarding mail to a GMail account. (It's under Settings, Accounts in GMail.)
Note: That means that users would save their credentials in their GMail preferences on the gmail servers. If that's fine with your security requirements, fine.
Cheers, wolfgang