Just as an employee of your company would take a letter to the post office and drop it off for delivery, email client applications hand your messages over to a Message Transport Agent (MTA) like ...

Linux operating systems contain the old Unix sendmail or mail program that allows you to send an email message from the command line. The default application does not include the option to send an ...

Sendmail is an extraordinary piece of software, adaptable for complex to modest installations with different needs. Almost every UNIX administrator has faced the installation and configuration ...

Before sendmail 8.13, sendmail servers were generally set up in one of two ways. Either their configurations were based on the main.cf file and they used DNS MX records to determine the identities ...

Any server that accepts email is at some risk of abuse. Given the relatively large population of dimwits in the world with nothing better to do with their time than send volumes of innocuous email to ...

There are quite a few ways to send email from the Unix command line and so many good reasons for doing so. You might want to provide feedback on automated processes so that you and fellow admins know ...

GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...