Too many hops

I'm trying to send an email to a .co address but am getting the follwing error message from MailMarshal:

"Could not be delivered because of

Server refused mail at END OF DATA - 554 Too many hops 26 ({MaxHops} max)"

The recipient is using SBS Exchange 2003 & MailMarshal SMTP 6.7.2

Any help would be appreciated so thanks in advance!
AndyDotNetAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Paul CoffeyCommented:
That is most likely a problem on the receiving server and the mail is looping.  I'm assuming you can send mail to other addresses.

Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
26 Hops does seem excessive, and could be a mail loop.

When mail leaves your organisation do you use a smart host, or DNS lookup for mail delivery?

We had this issues, because we were using many SMTP relays and engines between our mail servers and the internet mailhost for the organisation.
Paul CoffeyCommented:
If you are responsible for the .co mail server I found this searching on mailmarshall.

http://www.m86security.com/kb/article.aspx?id=11690
AndyDotNetAuthor Commented:
I have resolved this issue now.

I had not added the second domain to the routing table in MailMarshal

A rookie mistake but discovered in the end!

Thanks.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
AndyDotNetAuthor Commented:
Resolved. Missed adding the second domain address to the MailMarshal routing table...
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.