Abstract: When troubleshooting email issues, it may be useful to send emails from your server directly over the Microsoft Exchange Server using the telnet application. This guide shows some basic steps to send an email from your server.
Preparation:
– Install the telnet client (not the telnet server) on the affected Windows OS.
Via the following steps you can send an email over the MS Exchange Server exmail01.int.contoso.com:
1.) Open a CMD (an command prompt)
2.) Now connect to our MS Exchange server exmail01.int.contoso.com via port 25
telnet exmail01.int.contoso.com 25
3.) After you got a connection to the MS Exchange Server type
ehlo currentserver.int.contoso.com
if that didn´t work use
helo currentserver.int.contoso.com
and press enter
4.) enter the from email address you wish to use in the format:
mail from: username@example.com
Then press enter
5.) enter the email address from the persons who should receive the email in the format:
rcpt to: friend@hotmail.com, friend2@yahoo.com
or
rcpt to: friend@hotmail.com
then press enter
6.) To write the message – type data, followed by your subject and message. To end the message, put a period on a line by itself
data
Subject: My Telnet Test Email
Hello,
This is an email sent by using the telnet command
.
Then press enter
7.) Type quite to exit the telnet message
exit
8.) Your email is submitted to the server. If you see any errors during the steps above it might be due to:
– The server you are using currently isn´t allowed to send emails via the MS Exchange environment
– The email addresses aren´t correct
