A client of mine has an iPhone. We have verified that he has the correct settings input in his iPhone for his Exchange account. Other users have iPhones as well and are able to get email on their device. His username, password, server, email address, server are all correct. SSL is on which it should be. When setting up the account the iPhone accepts it but when he goes to check his mail a warning pops up stating that he is not able to connect to the Exchange server. Any ideas on where to look to solve this?
It sounds like he opened his Exchange account somewhere before to me. Just check his PC to see if he already logged in first ... Or there is another case which is possible. That he has some diverse account all connecting to one single e-mail address, so when he logged in the system doesn't know where he referred to .