After considerable discussion with Apple Support, screen sharing sessions and uploading data files, we have (almost) concluded this is a communication conflict between Apple Mail and AOL Mail's recommended server and port settings in OSX, not iOS. The server settings in OSX mail applications are different. Mail does not let you change server settings after you delete the AOL account and try to add it back, even when you choose "Add Other Account" to go around Mail automatically setting up the AOL account. You can change the port to Mail recommended setting but when you do, you cannot connect to AOL server through that port. So Mail has it wrong. Using Connection Doctor when the "Message has no content" error occurs I discovered one of the servers (incoming or outgoing) isn't connected. The progress wheel spins forever and then turns to a red dot. While this is happening, that specific email content does not download. Even after the connection is made, the content remains empty - it's already been delivered with no content. The content of new email after the servers are conntected is downloaded. It can take considerable time for Mail and AOL to connect. In sum, this "no content" problem occurs while the servers are trying to communicate but can't because of the server settings conflict. Two other errors also occur intermittently under these conditions - can't move the message to "x" mailbox and can't send because server cannot be found/try later. Eventually the connection is made but this is very annoying and message content can be lost. I retrieve "no content" emails from my iOS devices. Another confirmation of this problem is the "no content' error happens only with my AOL account, not with Yahoo and Comcast accounts that I have running simultaneously. Until the server and port setting conflicts are resolved, AOL and possibly other 3rd party mail applications like Outlook, will not work properly. I hope this helps those following this thread. Rod
