E-mails being returned to clients.

Hello,

I am running SBS 2003 Exchange with Outlook 2003 on the client computers. I'm getting several instances of returned e-mails. I'm not an expert with exchange and need some help to figure out why certain e-mails are not being delivered.

Here are some examples:

dorothy.hall@xxxxxxxx.com on 5/14/2006 2:08 PM
            Could not deliver the message in the time limit specified.  Please retry or contact your administrator.
            <directtransport.com #4.4.7>

The following recipient(s) could not be reached:

      rhonxxxxx@comcast.net on 5/9/2006 3:42 PM
            There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <directtransport.com #5.5.0 smtp;521-EHLO/HELO from sender 216.133.82.66 does not map to directtransport.com in DNS>

Hope these 2 examples can help figure this out!
MikeASchreinerAsked:
Who is Participating?
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.

upul007Commented:
Hi,

The first error occurs when your server cannot send out the email accordingly within the time limit specified by you. This can happen because of temporary site failures.

The second is since your reverse DNS entry is not set up. Use the DNS Report tool at www.dnsreport.com to get a full picture and ask your ISP to set up the records properly.

First set up the reverse DNS and see if the message sending errors occur. I think this will resolve your issue. Also consider setting up and SPF record and doing a full fledged Relay test through your DNS Report result sheet.

Good Luck!

Upul
0
Nat_cCommented:
hi,

As a temporary work around you could setup an additional SMTP connector that sends messages via your ISP's SMTP server and add any problem domains to that.

Hope this helps,
Nat
0
MikeASchreinerAuthor Commented:
I'll see what happens. I am kind of leary changing settings as I did not originally set up the configurations. I am really lost when it comes to this DNS stuff. All I know is we were set up with MX records and do not use the ISP for mail it is sent directly to our server and then distributed. I also believe it is sent directly from our server as well. Again I just am not very educated when it comes to Exchange and DNS stuff.
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

upul007Commented:
Easy. Just call your ISP and state the items highlighted in RED need to be fixed. By what I gather Incoming emails are gathered and relayed to your server whilst it sends outgoing email back to the ISP's server to distribute. Not the most advantageous of set ups. But get this fixed first.
0

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
MikeASchreinerAuthor Commented:
I will get back to you today once my ISP gets back to me.
0
MikeASchreinerAuthor Commented:
I'm pretty sure we got this figued out but waiting to hear back from my hosting service this morning. there is a problem with IP address for the domain and believe they need to set up a PTR record to point to wour exchange servers public IP. I'll let you know what happens.
0
MikeASchreinerAuthor Commented:
I contacted my T1 provider and had them create a PTR record pointing to my Webhosts IP address for my domain name. This has seemed to fix the problems I was having with my e-mails as there was no PTR record.

thanks for all of your help guys!

Mike S.
0
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
Outlook

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.