Solved

Exchange 2010 - Receiving not working

Posted on 2013-06-26
5
1,355 Views
Last Modified: 2013-06-26
I am having an issue with receiving on a newly installed Exchange 2010 server.  I have checked all the normal things and cannot find where anything is wrong.

From some IP addresses I can telnet with no problem.  And from others I cannot to port 25.

Below is the smtp test from mxtoolbox.com results.

220 Exchange-server Microsoft ESMTP MAIL Service ready at Wed, 26 Jun 2013 09:09:50 -0400 [811 ms]
EHLO please-read-policy.mxtoolbox.com
250-Exchange-server Hello [64.20.227.133]
250-SIZE
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-X-ANONYMOUSTLS
250-AUTH NTLM
250-X-EXPS GSSAPI NTLM
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250-XEXCH50
250-XRDST
250 XSHADOW [655 ms]
MAIL FROM: <supertool@mxtoolbox.com>
250 2.1.0 Sender OK [671 ms]
RCPT TO: <test@example.com>
550 5.7.1 Unable to relay [5663 ms]
QUIT

SendSMTPCommand: You hung up on us after we connected. Please whitelist us. (connection lost)

MXTB-PWS3v2 8206ms
0
Comment
Question by:considerscs
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 19

Expert Comment

by:Miguel Angel Perez Muñoz
ID: 39278028
Maybe filtered by ISP? Some dinamically ip addresses are filtering to void uses as spam senders.
0
 
LVL 14

Expert Comment

by:Raj-GT
ID: 39278031
Do you have protocol logging enabled on your receive connector? These logs will give you some more information.

A screenshot of the Network, Authentication and Permission Groups tab of your receive connectors will also help.
0
 
LVL 1

Author Comment

by:considerscs
ID: 39278062
I have been thinking the ISP could be at fault, but it is a static IP and we have them setting up RDNS.

I have protocol logging enabled on the receive connectors, but I switched the mx back for the time being until I could get this telnet issue resolved.

Screen shots are attached.
network.png
authentication.png
permission-groups.png
authentication2.png
network2.png
permission-group2.png
0
 
LVL 14

Accepted Solution

by:
Raj-GT earned 500 total points
ID: 39278223
It all looks correct. Did you test your server using the Connectivity Analyzer at https://www.testexchangeconnectivity.com

The analyzer will give you a detailed breakdown of where it failed. It is also worth checking your firewall to see if it's inspecting traffic on port 25/SMTP.
0
 
LVL 1

Author Comment

by:considerscs
ID: 39278433
The tes shows it is successful.

I changed the mx back to what it originally was and gave it some time toresolve, then set it back to the remote exchange server and now everything flows.
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

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

Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
This article explains how to install and use the NTBackup utility that comes with Windows Server.
In this video we show how to create an Accepted Domain 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 >> Ac…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

738 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