Insights into building a solid I.T. foundation in the mid-size business world.

Tag: email

  • The Dummy’s Guide to DMARC (Pt. 1 of 2)

    The Dummy’s Guide to DMARC (Pt. 1 of 2)

    Learn all about DMARC and secure your organization’s email!

  • Testing an external mail server

    There are times when I need to test the basic functionality of an external mail server (i.e. one I don’t control). Here’s a step-by-step process to perform some basic testing using telnet: Telnet to the remote server: telnet <server> 25 If it replies, you should get a response like: Trying <server>… Connected to <FQDN>. Escape character…