SMTP Queue, 1 Domain always Retry's

[Sweetworks]

I have and Exchange 2000 SP4 Server with SP 3 on Exchange.

My Markteting Department, always has trouble sending e-mail to our Graphic Artist, and it seems a few other addresses at the same Domain.

Any Time a message is sent to XXX@buffnet.net it stays in the Queue in the retry Connection state.
I try to Force the Connection and it fails and goes right back to retry. Sometimes it does go through, and some times our server sends a failed notice a few days later.

I called Buffnet, and they said they have nothing blocking e-mail from our servers. I pinged the address, and it resolves the IP aggess of mail.buffnet.net, mail2.buffnet.net etc. I would assume that it is not DNS related.

I am not sure what the problem is, nor how to discribe it to the Admins at Buffnet. ANy help would be appreciated.

 

[Davetoo]

When the email's get returned as failed, what is the error code they generate?

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.

 

[Sweetworks]

I do not have the message as the user has deleted it.

I'll post back after this current one bounced back

 

[Sweetworks]

I just received a Delay Messsage
_________
-----Original Message-----
From: postmaster@mydomain.local [mailtoostmaster@mydomain.local]
Sent: Tuesday, September 28, 2004 10:05 PM
To: user
Subject: Delivery Status Notification (Delay)


This is an automatically generated Delivery Status Notification.

THIS IS A WARNING MESSAGE ONLY.

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

Delivery to the following recipients has been delayed.

XXXUSERXXX@buffnet.net

 

[Davetoo]

Usually an indication of a problem on the receiving end, not on the senders side. The NDR will confirm that.

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.

 

[tadduci]

Hello,
Try telneting to the other company mail.buffnet.net 25 and see if you can pass mail via telnet... that will confirm a smtp problem or exchange...

Is your domain black listed with the company in question?

 

[Sweetworks]

Here is the Reject Message from my Server
-----Original Message-----
From: System Administrator
Sent: Thursday, September 30, 2004 9:54 AM
To: XXXX (E-mail)
Subject: Undeliverable: Spring Catalog Quote

Your message did not reach some or all of the intended recipients.

Subject: Spring Catalog Quote
Sent: 9/28/2004 9:50 AM

The following recipient(s) could not be reached:

xxxxxxxxx(E-mail) on 9/30/2004 9:54 AM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<mail.mydomain.com #4.4.7>

-----END Original Message-----

I am not sure of how to proceed with contacting the E-mail admins at the other site. Any Suggestions?
I tried Telneting to mail.buffnet.net and I get a connection lost message.

 

[Davetoo]

The problem appears to be on the buffnet server, not yours.

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.

 

[paulha]

go to

http://www.dnsreport.com/

and run a report on your domain. Look to see if you have reverse lookup configured, if you dont, have a word with your ISP to configure it.

We had the same problem, this approach solved it

Cheers

Paul