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 ...

I work for an ISP and occasionally deal with customers who swear up and down that they need *our* outgoing email server to make email that we do not host or provide work. Example: Customer has ...

One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email address. In your email client software, under Outgoing mail, set the SMTP server to ...

My Exchange 2010 server has five IP addresses. I've got the second one configured as the mail server, and the SMTP receive connector listens only on that address. However, all outgoing SMTP is using ...

It appears many Mail users are having authentication problems in which they are prompted for the username and password every time a message is sent (either manually ...

This list is a companion piece to the Secure Web server installation portion of SearchSecurity.com's Intrusion Defense School lesson on Web attack prevention and defense. Check out the companion ...

Outgoing mail for Microsoft email programs is automatically routed through the Microsoft Exchange Server. It is possible to change this server to something else and to stop outgoing email from using ...

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 ...