Why can't I send e-mails?

Question

Hi - since installing the latest upgrade on my iPhone, i cannot send emails. I can receive them but cannot SEND them. They just sit in my outbox. The error i get is "The user name or password for"SMTP:xxxxxxx@charter.net@Mobile.charter.net" is incorrect." I have not changed emails or passwords. Any help?

Mitch_GH · Accepted Answer

Try deleting your e-mail account and setting it back up.

Settings > Mail, Contacts, Calendars > (Select e-mail giving you trouble) > Delete Account

To set it back up, go back to 'Mail, Contacts, Calendars' in Settings and select 'Add Account'