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've got a Windows Server 2008 R2 machine (VM actually, 2x2.66GHz Nehalem vCPUs, 4GB RAM) that needs to relay about a million emails per day (busy website sending out lots of notifications). Bandwidth ...

In Mac OSX Mail or Thunderbird, you can use different smtp servers when sending an email from an account. You can make one SMTP server the defualt one, but you may change it each time you are sending ...

How to configure an SMTP server in a self-hosted instance Passbolt Your email has been sent With the self-hosted Passbolt password manager, you must configure an SMTP ...

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 ...

Some Outlook users have reported that they are unable to send email from the app as when doing the same, they receive Error 503 stating that the Valid RCPT command ...

Google's email platform doesn't have to be Web-based. You can configure Gmail to work in your office with Outlook or Outlook Express by using either POP or IMAP to send and receive messages with your ...

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 ...