tonyPerry
asked on
Getting timeout NDRs when sending to forwarded contacts
We have about 150 new employees (transferred from a new child company) set up in the AD with their email addresses forwarding to contacts that contain their ChildCompany.com email addresses. We have many other contacts forwarding to other domains. Many, or most, of the emails sent to ChildCompany users generate an undeliverable response with this:
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
Users forwarding to other domains do not do this. I called the ChildCompany last week to have ParentCompany.com put on their white list. Sometimes these emails are received by the recipient, sometimes they are not. The problem is most noticeable when sending to a distribution list but also occurs when sending to individual users. here is the top few rows of a test email I sent to the distribution group:
Your message did not reach some or all of the intended recipients.
Subject: TEST - again
Sent: 1/4/2010 5:53 PM
The following recipient(s) cannot be reached:
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
I can provide an SMTP log if needed.
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
Users forwarding to other domains do not do this. I called the ChildCompany last week to have ParentCompany.com put on their white list. Sometimes these emails are received by the recipient, sometimes they are not. The problem is most noticeable when sending to a distribution list but also occurs when sending to individual users. here is the top few rows of a test email I sent to the distribution group:
Your message did not reach some or all of the intended recipients.
Subject: TEST - again
Sent: 1/4/2010 5:53 PM
The following recipient(s) cannot be reached:
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
User on 1/6/2010 6:03 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<ParentCompany.com #4.4.7>
I can provide an SMTP log if needed.
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First, I would check DNS resolution. Make sure childcompany.com has MX records and you can resolve those MX records properly. If DNS is fine, I would try sending an email to their MX records from your Exchange server through a telnet session. Make sre you test all MX records.
http://www.yuki-onna.co.uk/email/smtp.html
JJ