Can you tell me why I'm not receiving emails on my iPhone? It was working yesterday morning, but have not been receiving anything. It keeps checking for emails, but it comes up saying "Account Error: Exchange. Cannot Get Mail. The connection to the server failed."

I have not changed any of my settings, so is this a Roger's problem?

Please fix this as I wasn't having a problem until Rogers changed it to "Xfinity Internet". I'm paying good money for this and this is not acceptable. Very disappointing.