Email account setup through Carrier’s Blackberry internet service using Exchange/Outlook web access.
1) Shut down blackberry and remove battery from device.
2) On the Blackberry Internet Service website, removed current email account for exchange.
3) Recreate exchange email account.
4) Boot back up Blackberry device.
5) Test Email.
“Unable to send email messages because the send as permission has been revoked” on Companyweb (Link)