Reverse address trouble?

[Larry Buss]

Hi folks

I look after a small site, nmwda.org, that is having trouble
sending or receiving email from certain sites. I have gone over
the local DNS configuration several times and as far as I can
tell everything looks okay. I am beginning to think that their
problem may be with their service provider not delegating the
reverse zone to them or not having accurate PTR information on
them. I was hoping that I could get some of you folks to
check the site out from your domains to see if it something I
messed up on or if it is a problem "upstream" from their server.

The NS is, tj.nmwda.org (209.143.67.29)

Thanks in advance for the help.

-LB