http://support.apple.com/kb/TS3398
The article says this is about not syncing but it also fixes the problem of sending mail.
View the page on your phone and accept the new file even though it isn't signed. Reboot and it immediately fixed my problem sending e-mail from my exchange account.
Hope this helps.
The article says this is about not syncing but it also fixes the problem of sending mail.
View the page on your phone and accept the new file even though it isn't signed. Reboot and it immediately fixed my problem sending e-mail from my exchange account.
Hope this helps.