Solved

450 4.7.1 smtp SERVFAIL error on DNS 'SPF' lookup of 'domain name' Recipient address rejected

Posted on 2013-01-07
1
2,708 Views
Last Modified: 2013-01-10
Thank you for looking at my question,

We run MS Exchange 2003 as part of SBS 2003. Users have started having mails to individuals at one company bounced back with the following error message:

You do not have permission to send to this recipient.  For assistance, contact your system administrator.

<ourdomain.com #4.7.1 smtp;450 4.7.1 <johnsmith@theirdomain.com>: Recipient address rejected: SPF-Result=ourdomain.com: 'SERVFAIL' error on DNS 'SPF' lookup of 'ourdomain.com'>

I don't even know where to start with this so any and all help would be appreciated greatly.
0
Comment
Question by:Crxfrd
[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
1 Comment
 
LVL 34

Accepted Solution

by:
Paul MacDonald earned 500 total points
ID: 38751492
The recipient server is configured to reject mail where the sender doesn't have a valid SPF record in DNS.

Check to see if your DNS contains an SPF record and, if so, that it's valid for the domain name you're sending from/as.

http://technet.microsoft.com/en-us/library/ff714972.aspx
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

This article will help to fix the below error for MS Exchange server 2010 I. Out Of office not working II. Certificate error "name on the security certificate is invalid or does not match the name of the site" III. Make Internal URLs and External…
This article will help to fix the below errors for MS Exchange Server 2013 I. Certificate error "name on the security certificate is invalid or does not match the name of the site" II. Out of Office not working III. Make Internal URLs and Externa…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Suggested Courses

617 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