Apple's Mail.app can suddenly and inexplicably fail to send e-mail through SMTP (outgoing) servers. A few relatively simple fixes for this issue are as follows: Delete outbox folder In some cases, the ...

If you encounter any errors while attempting to send email messages from Microsoft Outlook 2013, the problem most likely lies with either your Internet connection or ...

Many users have reported to be getting a long error message saying: Send test e-mail message: The connection to the server was interrupted. If the problem continues ...