Anyone else have this, and more importantly, anyone have a solution? I noticed that when on a Wi-Fi connection, sending (or replying to) an email on an Exchange account fails. All other accounts like hotmail etc work fine. If I turn Wi-Fi off, and re-send the mail via 3G, it sends OK. Anyone else get this? Only happens on Exchange accounts. Unfortunately the error message is so broad (Something like "There was an error sending the message") it's hard to diagnose *why* it failed. Is there a solution to the problem? It's driving me to distraction. There was no problem with iOS5, and this problem only appeared after the upgrade. I sent feedback to apple, but you never know if it was seen or not. .