I've been receiving the following message from my Mac Outlook 2011 - version 14.4.5 for two weeks. It's now got to the point where mail doesn't sync at all for my two gmail accounts. Mail can be sent but it doesn't get received in outlook - it does get received in the gmail browser though.

Message is:

Mail could not be received at this time.

The server for account “gmail” returned the error “[ALERT] Too many simultaneous connections. (Failure.” Your username/password or security settings may be incorrect. Would you like to try re-entering your password?

Putting the password in doesn't do anything. It doesn't register them at all.

I can see others had this issue but I'm on a personal computer and everything people have suggested doesn't work:

- I can't seem to see "exhange server field" as Simon suggests here - http://bit.ly/13AUyty

- I've changed the SMTP port to 587 as Microsoft suggest - http://support.microsoft.com/kb/2353968#survey

- I've deleted all my schedules as someone else did in 2010

- I've updated my keychain access as someone suggested in one of the forums

- I've restarted, deleted both accounts and recreated them.

I'm just not sure what to do now. Both accounts have gone orange in the "accounts" area, where they would at least be green when I initially had this error.

Any help or advice would be greatly appreciated.