Very frustrating SMTP problem - can't send/phone won't save settings
I have a 1.1.1 phone running unlocked on Tmobile. For whatever reason, I can't send emails - from a POP or IMAP account because the phone won't save the outgoing (SMTP) info - the "authentication" menu is disabled in the Advanced menu of the email settings. Without being able to modify that, the mail program can't properly access my mail server. When I try to send, it gives me a "Cannot send mail: The connection to the outgoing server 'mail.server.com' failed."
I've tried everything I know to do to fix it - the settings themselves are correct.
- I've deleted the account and added it back on the phone
- I've deleted the account and then synced the phone to let iTunes add it back
- I've appended the port number at the end of the SMTP server
The phone won't let me add an SMTP password (it says 'optional' and when I change it, it doesn't save and the authentication method can't be modified either).
Does anyone have any ideas about how to fix this?