How to test SMTP operations using Telnet

1. Telnet into Exchange server hosting IMS service using TCP port 25. Command is telnet <servername> 25 2. Turn on local echo on your telnet client so that you can see what you are typing. On Win 9x and NT 3.5/4.0 Telnet client this done by selecting the “preferences” from the “terminal” pull down menu, and checking the local echo radio button.  For Windows 2000 telnet client, issue command “set local_echo”, from the telnet command prompt. 3. Issue the following smtp command sequence helo <your domain name><enter>                   response should be as follows 250 OK mail from: <your Email Address><enter> response…

Disable or enable windows firewall on cmd

Hello everyone, I’m going to share a few efficient commands for windows or server operating systems in this article. This article name is how to disable or enable windows firewall on cmd. How to disable or enable windows firewall on cmd Windows firewall can be enabled/disabled from the command line using the command netsh. Let’s see the syntax of netsh advfirewall to configure the firewall on these Windows versions.  Firewall settings are different for each of the 3 networks (Domain, private, public). So based on which network firewall you want to enable/disable, the command would vary. 1. Windows 10 / Windows 8/…