Sendmail not sending mail?


I read the KB article about sendmail and the user post added to it. I’d just like to verify whether the potential issue of the DH DNS holding mail applies in my case:

I’m waiting for some DNS propagation to complete so that the address will eventually point to my DH account (where the site is running). The site uses sendmail to send user alerts, and since moving to DH I haven’t been recieving any of these.

Could this be caused by DH’s DNS witholding the mail? And if so, what happens to that mail? Will I ever get it, or is it lost?