We change password policy of AD and users changed AD password. Users can log in by laptop by new password, but it happens that some users can not receive/send mail by iPhone by new passord. It looks there is some delay till new password is accepted by iPhone by ActiveSync in Exch2003. Is there any reason for delay for iPhone user ?

This is expected behavior. The way activesync is able to "push" mail to your phone is the phone opens an HTTP connection to the server and *keeps* that connection open. Even when you force a sync, all the phone is doing is sending new commands over the existing HTTP connection that is already open. Changing a password does not close existing connections. However when the heartbeat interval passes and a new connection is created, a new password will be required. The heartbeat interval is determined dynamically by the server and the phone based on the longest successful connection established, so there is no set answer as to how long this will take. More about how DirectPush works and the persistent connections: http://technet.microsoft.com/en-us/library/aa997252.aspxThanks and Regards, Mukesh. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Please VOTE as HELPFUL if the post helps you and remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thank you. Not only delay, it looks some symbol (especially mark in Japanese) are rejected. unable verify account information happen. Is there character which is not configurable ? (like )

Thank you. Not only delay, it looks some symbol (especially mark in Japanese) are rejected. unable verify account information happen. Is there character which is not configurable ? (like ) I really don't know, but if it works in OWA then this is not an Exchange problem. You might want to ask Apple.Martina Miskovic

Please note, the passwords must contain characters from three of the following five categories: Uppercase characters of European languages (A through Z, with diacritic marks, Greek and Cyrillic characters)Lowercase characters of European languages (a through z, sharp-s, with diacritic marks, Greek and Cyrillic characters)Base 10 digits (0 through 9)Nonalphanumeric characters: ~!@#$%^&*_-+=`|\(){}[]:;"'<>,.?/Any Unicode character that is categorized as an alphabetic character but is not uppercase or lowercase. This includes Unicode characters from Asian languages.Noya Lau TechNet Community Support

Thank you. I asked NW carrier which provide iPhone and they say input \ instead of in Japanese environment.