Solved

Undeliverable Mail

Posted on 2009-06-29
5
295 Views
Last Modified: 2013-11-30
Hi All,

A company I work with cannot send mail to my domain, when they attempt to send to my domain they get the following.

"Undeliverable: Your message did not reach some or all of the intended recipients.

      Subject:      FW: Test from
      Sent:      6/26/2009 2:23 PM

The following recipient(s) cannot be reached:

      user@mydomain.com on 6/26/2009 10:29 PM
            Could not deliver the message in the time limit specified.  Please retry or contact your administrator.
            <server.theirdomain.local #4.4.7>

      anotheruser@mydomain.com on 6/26/2009 10:29 PM
            Could not deliver the message in the time limit specified.  Please retry or contact your administrator.
            <server.theirdomain.local #4.4.7>"

Their IT group has told the users getting NDRs that it is something on my end that is preventing the mail from going through.  I am looking for advice to figure out what the problem is, we had just recently switched ISP's and I suspect it may have something to do with that.  

Thanks
-Cody
0
Comment
Question by:cody426
[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
  • 3
  • 2
5 Comments
 
LVL 76

Expert Comment

by:Alan Hardisty
ID: 24738067
Do mails get delivered directly to your mail server?
If so, check you MX records on http://www.mxtoolbox.com/
Do the MX record(s) point to your IP Address?
Test Mail connectivity on http://www.mxtoolbox.com/diagnostic.aspx to see if your mail server is contactable.
Check your external IP Address is what you expect it to be on http://www.whatismyip.com
If your emails get delivered to a 3rd party first, call them to see if they have problems.
Are you using any spam / Anti-Virus filtering software?
0
 

Author Comment

by:cody426
ID: 24738198
alanhardisty;

Mail does go directly to my server. the MXrecord looks correct (my IP).

The SMTP Diag seemed good as well, here is what I got.

RESULT: mail.mydomain.com
Banner: 220 mail.mydomain.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 ready at Mon, 29 Jun 2009 10:18:24 -0700
Connect Time: 0 seconds - Good
Transaction Time: 0.344 seconds - Good
Relay Check: OK - This server is not an open relay.
Rev DNS Check: OK - XXX.XXX.XXX.5 resolves to mail.mydomain.com
GeoCode Info: Geocoding server is unavailable
Session Transcript: HELO please-read-policy.mxtoolbox.com
250 mail.mydomain.com Hello [64.20.227.13 [78 ms]
MAIL FROM: <test@mxtoolbox.com>
250 2.1.0 test@mxtoolbox.com....Sender [94 ms]
RCPT TO: <test@mxtoolbox.com>
550 5.7.1 Unable to relay for test@mxtoolbox.c [78 ms]
QUIT
221 2.0.0 mail.mydomain.com Service closing transmission chann [94 ms]
 
I do not work with any third party email providers.  I had run these tests previous to posting here and after reading many other posts, and from what I see they seem fine, maybe I'm missing something.

I am using AVG 8.5 on the Exchange server.  This server has been running for over a year now with no confiugration changes besides the AV (switched from Symantec 10.2 to AVG) which was changed about 5 months back.  This is the only domain I am aware of that gets NDR's when sending to my domain.

Thanks
-Cody
0
 
LVL 76

Expert Comment

by:Alan Hardisty
ID: 24738232
Did you check your current IP on www.whatismyip.com ?
Can you email your domain details, your Internet IP address, the domain name / IP of the company having problems sending you emails please - details in my profile.
0
 
LVL 76

Accepted Solution

by:
Alan Hardisty earned 500 total points
ID: 24739791
Thanks for your email.  I have checked out both sides and all appear to be quite happy, so there seem to be an issue on the sending side as they cannot find you in DNS, despite it working happily for me.
How long ago did you switch ISP and if less than 48 hours, this could be the reason?  If longer than 48 hours, then please call the senders IT department and ask them to investigate the problems.
Your end seems all clear.
0
 

Author Closing Comment

by:cody426
ID: 31598017
It has been almost 2 weeks since the change in ISP, and no other domains have contected me about the inibility to send.

Thanks
-Cody
0

Featured Post

Office 365 Training for Admins - 7 Day Trial

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.

Question has a verified solution.

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

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
A list of top three free exchange EDB viewers that helps the user to extract a mailbox from an unmounted .edb file and get a clear preview of all emails & other items with just a single click on mailboxes.
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…
To show how to generate a certificate request 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 Servers >> Certificates…
Suggested Courses
Course of the Month5 days, 10 hours left to enroll

627 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