If you’re looking to verify if an email address is functioning properly there are a couple of methods available.
Content Error or Suggest an Edit
Notice a grammatical error or technical inaccuracy? Let us know; we will give you credit!
Telnet Method
You can actually connect to mail servers using the telnet command. Here’s an article that sums up the process rather easily.
https://www.sparkpost.com/blog/how-to-check-an-smtp-connection-with-a-manual-telnet-session/
If you’re not familiar with using a terminal, which is now available on Windows then you can read this article that I’ve developed.
Online Services
There are a number of online services that allow you to check if any email address is functioning.
If you know of others that work well, please comment and I will add them.
