Status: 4.4.1

R

Rob

Does anyone know if this message has a specifiv meaning or is it just a
"catch all" mesage?

It is the status that is returned when I try to emial a specific domain. I
am trying to find out if my domain has been blocked, because I cannot emial
anyone from that domain, from my domain.

Anyone have any idea how I can determine if we are blocked?

Thanks

Rob
 
N

neo [mvp outlook]

Numeric Code: 4.4.1

Possible Cause: The host is not responding.

Troubleshooting: This code may be caused by transient network conditions.
Exchange will automatically try again to connect and deliver the e-mail. If
delivery still fails after multiple tries, a permanent failure NDR will be
generated.

Have you tried e-mailing the postmaster using a free web mail account
(hotmail, yahoo, .etc) or your personal ISP? Can you telnet from your mail
server to the domain mail server on port 25 and get the SMTP banner?
 
R

Rob

My emails reach accounts on the "problem" domain from any other POP account,
just not from our domain.

This is all POP mail. We are trying to email a customer's domain, but it
times out and gives us the 4.4.1 Status.

We would like to know if their domain has blocked emails from or domain? We
suspect a little problem with one of their employees.
 
N

neo [mvp outlook]

They could be blocking since today's fight against SPAM means that some
folks configure their servers in such a way that it falls out of spec with
the RFCs. This is why I asked if you tried going to your mail server and
then tried a telnet to port 25 on the destination server. At the very least
this will help you determine if their server is responding because you
should get back their SMTP banner if the connection is successful.
 
R

Rob

Sounds like a great way to troubleshoot the problem, but how do I telenet
from my mail server when it is hosted?
 
R

Rob

I have and it appears that my host has been blocked.

I never ceases to amaze me what people will do to get their way...
 
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