I'm using apple's stock mail app. I haven't been able to send mail since yesterday I get a message saying "Cannot Send Mail, the username or password for your account is incorrect" I get incoming emails without a hitch. I proceeded to delete my account and re enter all the settings again, still the same problem. I'm on iOS 7 Beta3. Things used to work fine with the same settings before yesterday. I don't have the account set up as exchange since Google Sync does not work anymore. So it isn't that. Thanks in advance.