[Cyricx]

Make sure you have enabled pop3 in your gmail box.

Per the third post in this thread

• Can I use a Gmail account to pull the emails from?

You most certainly can.

Login to your mailbox at gmail, go to Settings -> Forwarding and POP/IMAP

Enable POP for the account, either from here on, or for all mail. Be sure to select archive or delete for what to do after the messages are downloaded. Otherwise the system will continue to repost the emails!!

In your forummanager use the folowing settings:

email address to reply to: username@gmail.com
hostname: pop.gmail.com
username: username@gmail.com
password: password
Type of connection: select "POP3 with SSL (Self signed certificate)"

Done!

If you don't enable your gmail box to allow people to connect to it via pop3 or imap it will give that error