With many types of business email accounts, your computer connects to a machine called the Simple Mail Transfer Protocol server when you send messages. If you have difficulty sending messages, there ...

Microsoft Outlook receives and delivers messages over a mail server, a remote computer that acts as a Web-based post office. Email providers such as Yahoo, Google and Hotmail host these servers to ...

Many Mail.app users are experiencing an problem in which the application will not send. The Mail application receives incoming messages properly, but when users attempt to send messages they are ...