I'm on Orange UK, I have the setting correct but I cant send or receive messages.
I could about 2 weeks ago as my girlfriend sent me some audio file and I've sent her a few photo's she's definitely received.

When I get a message I'm prompted about it, I click the message, I get the yellow bar saying 'Downloading Message' but after a few minutes it comes back saying 'Unable to retrieve message'.

When I try to send a message it gives me an error telling me to check my settings.

Any ideas?

Thanks