I have a client site that the Town Manager has his Town email setup on an iPhone 5s and a iPad. Both are completely up to date IOS wise, but here is my problem. We are using Small Business Server 2008 with Exchange 2007 he has his email setup on his IOS devices via Exchange. Very randomly he will get an email and look at it, when he looks at it even for a second or 2 it will disappear from his IOS devices and from outlook. It is not in junk it is not in deleted items its GONE. I have looked at the logs on exchange and it shows the message coming in and being delivered. This issue only happens to this one user. He does not have any exchange rules setup and the issue is very random on random emails.I have removed the mail accounts on the IOS devices and re added them and the issue still persists.