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EHLO

TELNET 25 ... EHLO ... FAILED -.-

You have tried to fix something in an Exchange Organization and you can't find anything usefull in your search engine? Then go on the left site to the FAQ or use the Search function above right.

If you have a Problem and you also find nothing here, then just send me an email to help (@) exchange-help DOT Com and I will try to answer it (Please be aware, that I need a bit more information then just the error message).

I am also looking for some help! If you have any solution to your Exchange/Sharepoint/Blackberry/etc issue or you have some HowTo what you like to share with others, then please send it to above email address. If you want some credits or a link to your website above your posted email, then let me know and you will get your link!

And if you are looking for the commands for telnet and how to drop a email? Then scroll down!

c:\> telnet IP_Address_of_SMTP_Server 25
220 SERVERNAME Microsoft ESMTP MAIL Service ready at Mon, 21 Jun 2010 07:01:43 +0000

ehlo mydomain.com
250-SERVERNAME Hello [xx.xx.xx.xx]
250-SIZE 157286400
250-PIPELINING
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-AUTH
250-8BITMIME
250-BINARYMIME
250 CHUNKING

mail from: This email address is being protected from spambots. You need JavaScript enabled to view it.
250 2.1.0 Sender OK

rcpt to: This email address is being protected from spambots. You need JavaScript enabled to view it.
250 2.1.5 Recipient OK

data
354 Start mail input; end with .

To: This is a email
From: Someones email
Subject: Testing SMTP Mail Relay

Dear This n' That,

This is the body of the message.

.
250 QAA07271 Message accepted for delivery

quit