We help IT Professionals succeed at work.

How to resolve the various Undeliverables by Exchange 2003

391 Views
Last Modified: 2013-11-30
Here's the complete error message (there are several like this)
:  sue@simplyelegantevents.biz on 10/2/2007 11:43 AM
            You do not have permission to send to this recipient.  For assistance, contact your system administrator.
            <tskorman.com #5.7.1 smtp;554 5.7.1 Service unavailable; Client host [208.41.190.181] blocked using dul.dnsbl.sorbs.net; Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml?208.41.190.181

:
The irony is we are not listed on SORBS.net, I don't know whose IP address that is (not ours).
We're using GFI Mail Essentials but I tested with that service not running and it returns with the exact error message.  I'm also checking with GFI, awaitiing their response.  Frustrating!!
Comment
Watch Question

Expert of the Year 2007
Expert of the Year 2006
Commented:
Unlock this solution and get a sample of our free trial.
(No credit card required)
UNLOCK SOLUTION

Commented:
1. Go to www.dnsstuff.com and let them have check your mail server, mx records, spam lists etc.
2. Check your reverse dns records
3. If you don't have SPF, make a DNS SPF record. SPF stands for Sender Policy Framework and each domain should have a SPF record in DNS. See www.openspf.org.

Author

Commented:
The Email  Server used to go through DSL.NET until about a month ago, then these Undeliverables.

Author

Commented:
The dynamic IP listed is always the same, it looks like DSL.NET's.  Maybe I should call them now?
I went through DNSstuff.com, checked through the MX, the Reverse DNS, and spam lists - all cool.
Expert of the Year 2007
Expert of the Year 2006

Commented:
You have accepted my answer. Is the problem resolved?

Simon.

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Thanks for using Experts Exchange.

Please provide your email to receive a sample view!

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.