A strange problem --

Last night I upgraded to the final release of iOS 6 on my iPhone 4S and my iPad 2. When I open an app that allows you to send emails from within the app (e.g. adobe Reader, TurboScan, etc.) -- doesn't matter which one -- I am prompted with the email dialog from within the app, I can compose the message, but when I go to send one of two things will happen: either the email sending sound will "swoosh" and the dialog will close (leading me to think it worked) or some apps with good error handling will say there is an "error sending email." The error logs on my device are not reporting errors. It's just that the email doesn't really send.

I have two Exchange mail boxes on these devices. One connects to a corporate network hosting on-premise exchange 2007 and the other connects to Gmail over the exchange interface. Have attempted to delete and re-pair these accounts (one at a time) without any change. I'm wondering if others are experiencing this problem, or whether I should just wipe the devices and chalk it up to (another) failed upgrade.

Thoughts much appreciated.

Joe