Emails kicking back.

A user is trying to send an email to a specific domain, but when they do they receive a kickback.

I tried googling this but could not find much in the way of information. Could it be that the receiving domain is marking us as spam and rejecting it?

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

      Subject:      

The following recipient(s) could not be reached:

      User@Domain.com on 4/8/2009 8:05 PM
            The e-mail system was unable to deliver the message, but did not report a specific reason.  Check the address and try again.  If it still fails, contact your system administrator.
            < Server.MyDomain.com #5.0.0 X-Proprietary; host smtp03.Domain.com[195.246.114.70] said:    551 5.0.0 SPAM NOT ALLOWED (in reply to end of DATA command)>
Drakin030Asked:
Who is Participating?
 
Drakin030Connect With a Mentor Author Commented:
Well the user has reported that everything is working now.

My only guess was that it was some kind of spam blocker, or as you mentioned, blacklisting.

Not sure how to close this case out though...
0
 
zelron22Commented:
Does your ISP have a correct reverse DNS entry for your domain/mail server?
0
 
Drakin030Author Commented:
ZeIron22,

We actually have an Authoritative DNS Server on our end that contains all DNS entries.

I checked the DNS list and there is a checkbox beside our mail server (Reverse DNS) That box is blank as with every other DNS entry.

Should we check that?

(The device that does this is a PowerLink 100 from Astrocom)
0
Protect Your Employees from Wi-Fi Threats

As Wi-Fi growth and popularity continues to climb, not everyone understands the risks that come with connecting to public Wi-Fi or even offering Wi-Fi to employees, visitors and guests. Download the resource kit to make sure your safe wherever business takes you!

 
Drakin030Author Commented:
Actually ZelIron22 I'm sorry it does have a reverse DNS Entry.
0
 
zelron22Commented:
You're hosting your own external DNS?  

Assuming that the specific domain isn't Yahoo, Hotmail, Google, etc., you may need to contact the IT staff at the other end to see if they have you blacklisted.


0
 
zelron22Commented:
Leave it open for a couple of days and if nothing happens, close it as if it fixed itself.
0
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.

All Courses

From novice to tech pro — start learning today.