The Simple Mail Transport Protocol, or SMTP, is a standard for how computers talk to each other to send email. If you're sending email using Microsoft Outlook, your computer may connect to your ...

Verizon is one of the many Internet Service Providers that require you to authenticate when sending mail. The purpose of SMTP authentication is to reduce email spamming and abusive mailing behaviors.

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 ...

Email: It's been around for decades, and people are still confused about how it works--and for good reason. Setting up and troubleshooting an email account can be an irritating venture. Recently, we ...

I set it with the eximconfig program, and indeed it is in /etc/mailname, but it's still not working properly, and it's causing some mail servers to reject ...

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 ...

Hi guys, I have an IMAP server that I use that has been all screwed up because the server was hacked, and then blacklisted, and now restrictive on outgoing mail. It's a hastle. I want to send all ...