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?
SnapOverflow
Found the solution, at least for my case. In Active Directory went into the users properties, security tab, clicked on SELF, then advanced and checked the box to allow for inheritable permissions from the parent. After that he was able to sync up.
Make sure that you're on Wifi and not the Cell networks.
Ensure that his Exchange server is reachable by the iPhone. Since you don't have a command-line to ping from, try accessing OWA (Outlook Web Access) by going to
http://[mailserver]/exchange/Have you tried setting his phone up with another user's account and setting his account up on another user's phone? This should tell you if it's a phone or account issue.
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 .