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Exchange 2019 - Run a telnet test

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Experience Level: Beginner
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Edward van Biljon (MVP)
Experienced Messaging Specialist with a demonstrated history of working in the information technology and services industry.
In this video we show you how to run a simple telnet test to ensure that the receiving mail server is responding.

Video Steps

1. Open Command

Click on start and type in cmd, once it shows run it as administrator

2. Enter command

At the elevated command prompt, type in the following: telnet mailserver 25 (replace mailserver with the one you want to check) and press enter. If you receive a 220 statement on the top of the screen you know that it is responding on that port.
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