External exchange organization having trouble sending to my exchange organization.

Posted on 2007-10-16
Medium Priority
Last Modified: 2012-06-21
Users sending from a external Exchange 2000 SP4 organiation are trying to send my users mail.  They are the only ones that we cannont recieve mail from.  And they say we are the only ones they cant send to. The event log displays this message when ever they try to send a email.

Inbound authentication failed with error LogonDenied for Recieve connector Default EXCAHNGE. The authentication mechanism is Gssapi. The source IP address of the client who tried to authenticate to Microsfot Exchange is [216.xxx.xxx.xxx].

My organization uses Exchange Server 2007 with Roll up 4

My questions are...  Why would a external exchange server try to authenticate directy to my server in order to send mail?


How do i fix this either internally or by contacting their IT department?
Question by:curwengroup
LVL 29

Accepted Solution

mass2612 earned 1500 total points
ID: 20089108

It sounds like your recieve connector is set to require authentication. You may be able to solve this by creating a new recieve connector that does not require authentication for this domain.

How to Create a New Receive Connector


Author Comment

ID: 20089138
i have shut off all authentication methods on my current recieve connector and it doesnt seem to make a difference.  

Why would the other persons exchange organization even be trying to offer authentication?

Featured Post

What Security Threats Are We Predicting for 2018?

Cryptocurrency, IoT botnets, MFA, and more! Hackers are already planning their next big attacks for 2018. Learn what you might face, and how to defend against it with our 2018 security predictions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to effectively resolve the number one email related issue received by helpdesks.
Eseutil Hard Recovery is part of exchange tool and ensures Exchange mailbox data recovery when mailbox gets corrupt due to some problem on Exchange server.
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
Whether it be Exchange Server Crash Issues, Dirty Shutdown Errors or Failed to mount error, Stellar Phoenix Mailbox Exchange Recovery has always got your back. With the help of its easy to understand user interface and 3 simple steps recovery proced…
Suggested Courses

862 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question