Email Looping

[terran9]

I use to have a problem receiving mail at terran9@69.14.168.239. I use to get this error.
<terran@69.14.168.239>:
69.14.168.239 failed after I sent the message.
Remote host said: 554 too many hops, this message is looping (#5.4.6)

--- Below this line is a copy of the message.

Return-Path: <bjf03@yahoo.com>
Received: (qmail 32016 invoked from network); 2 Oct 2004 00:18:47 -0000
Received: from unknown (HELO server.wowway.com) (192.168.1.2)
by 0 with SMTP; 2 Oct 2004 00:18:47 -0000
Received: (qmail 19106 invoked from network); 2 Oct 2004 00:18:47 -0000
Received: from unknown (HELO server.wowway.com) (192.168.1.2)
by 0 with SMTP; 2 Oct 2004 00:18:47 -0000


However, I fixed that problem with Scott Gifford's moreipme patch. So now I can send email from Yahoo to terran9@69.14.168.239 without a problem.

Now the problem is though I signed up with No-ip to redirect a chosen hostname to my ip address. So that I could type terran9@informationsecurity.hopto.org I would receive it at terran9@69.14.168.239. However, If a send an email from Yahoo to terran9@informationsecurity.hopto.org I get this error

<terran9@informationsecurity.hopto.org>:
69.14.168.239 failed after I sent the message.
Remote host said: 554 too many hops, this message is looping (#5.4.6)

--- Below this line is a copy of the message.

Return-Path: <bjf03@yahoo.com>
Received: (qmail 18949 invoked from network); 3 Oct 2004 18:11:12 -0000
Received: from unknown (HELO server.wowway.com) (192.168.1.2)
by 0 with SMTP; 3 Oct 2004 18:11:12 -0000
Received: (qmail 17549 invoked from network); 3 Oct 2004 18:11:12 -0000
Received: from unknown (HELO server.wowway.com) (192.168.1.2)
by 0 with SMTP; 3 Oct 2004 18:11:12 -0000

Can anyone guide me why this would happen? Thank you.