Simple Mail Transfer Protocol Archives

1. Configure mail relay options carefully to avoid being an Open Relay It’s very important to configure your mail relay […]

How To Breakdown, Analyze and Understand SMTP Codes

Analyzing and understanding SMTP codes is not something that we need to do on a daily basis but when IT

Should you use POP3 or IMAP? The first thing you need to do before making a decision is to understand

First: If you’re a security savvy IT administrator, this article is not for you. This will sound pretty obvious to

From time to time, you might find that messages get “stuck” in your email security gateway server and don’t get

In Part 1, I showed you how to use telnet to determine whether or not your mail server is having

Email Security Grader is a newly launched online tool that provides useful information for IT administrators and Mail System managers