iis smtp nntp: Hotmail does not accept mail sent by my SMTP server -- iis smtp nntp

You're in the

iis smtp nntp

group:

Hotmail does not accept mail sent by my SMTP server

Kane
4/18/2006 9:11:14 AM

iis smtp nntp:

Wheneve I sent email to hotmail.com, it is rejected by them. This is the
error message when I used SMTPDIAG to diagnose the problem.

Error: Expected "250". Server rejected the sender address.
Failed to submit mail to mx3.hotmail.com
Error: Expected "220". Server is not accepting the connection.
Failed to submit mail to mx3.hotmail.com

I can send email to other domain.

This is my internal SMTP server for outbound email only, not for incoming.
I also have a smart host in my DMZ, if I put the smart host ip into my
internal SMTP, the email can go to hotmail.com but if I do not use the smart
host, it cannot be delivered.

My internal DNS can do the name resolution for hotmail.com, therefore I
think that it is not related to DNS.

Any idea? thanks!

Re: Hotmail does not accept mail sent by my SMTP server

jeff.nospam NO[at]SPAM zina.com
4/19/2006 12:00:00 AM

On Tue, 18 Apr 2006 09:11:14 -0700, "Kane" <kane@worldwarranty.com>
[quoted text, click to view]

It's not you. It's them. And they're refusing your mail. Most
likely because you use a dynamic IP or a broadband network IP range.

And you already found the solution.

Re: Hotmail does not accept mail sent by my SMTP server

Christopher Reed
4/19/2006 8:19:28 PM

I've seen this with several mail systems including Hotmail. I ended up
using our domain that we have an MX record for within our DNS. I think that
some of these mail hosts refuse emails that cannot be matched to a MX DNS
record.
--
Christopher A. Reed
"The oxen are slow, but the earth is patient."

[quoted text, click to view]

Got something to say? Click here to post a reply to this thread.

Don't see what you're looking for? Try a search.

View other messages in the iis smtp nntp group.

home · blog · groups

Questions? Comments? Contact the dn