E-Mail and Xfinity Connect Help

[Bully78]

Emails to a specific address have been bouncing back to me.  Here's what I'm receiving:

In an email from Mail Delivery System [mailer-daemon@comcast.net]:

This is an automatically generated Delivery Status Notification.     

Delivery to the following recipients was aborted after 1 second(s):

  * xxxxxxxx@vip.163.com

I also get these details:

Reporting-MTA: dns; qmta10.westchester.pa.mail.comcast.net [76.96.62.17]
Received-From-MTA: dns; omta19.westchester.pa.mail.comcast.net [76.96.62.98]
Arrival-Date: Tue, 15 Jun 2010 20:51:15 +0000

Final-recipient: rfc822; xxxxxxxx@vip.163.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;  554 MI:SPB 0,mx5,mQmowKA7WAPB5xdMAdDXAA--.2630S2 1276635074 http://mail.163.com/help/help_spam_16.htm?ip=76.96.62.17&hostid=mx5&time=1276635074
Last-attempt-Date: Tue, 15 Jun 2010 20:51:16 +0000

Any ideas?  I know the address is valid, and I know it's correct in my system.  These emails just recently began to bounce back to me.

Any and all help greatly appreciated.  This person is very important to my business, and is located in China, so it's very hard to get in touch with him.

[madylarian]

Did you follow the link in that message?  It looks like they are blocking your IP as spam.

mady

[steve-baker]

---

madylarian wrote:

Did you follow the link in that message?  It looks like they are blocking your IP as spam.

mady

---

Well, since they mention the address of the Comcast server in the error message my first guess would be that that's the address being blocked, not the user's address. But, after fooling around a bit, it looks like they're blocking @comcast.net sender addresses. So, the OP could try using a different sender address; they seem to be accepting email from @hotmail.com addresses, for example. I'd guess the best chance for a fix would be for the OP to tell their contact about the problem and see if they have any influence at their end.