DNS (un)Management

Today, I registered to a web cast event. Unfortunately, I lost my password. So I used the “lost password recovery ” feature provided on the website. But the temporary password didn’t reach my mailbox. Second try, same result!?

After some unsuccessful investigations, I checked my SMTP log file and found the following problem:

Apr 22 17:59:14 boogey postfix/smtpd[10157]: NOQUEUE: reject:
RCPT from brighttalk.com[160.79.38.178]: 450
<apache@lbweb04.brighttalk.com>: Sender address rejected: Domain
not found; from=<apache@lbweb04.brighttalk.com> to=<xxxxxxxx>
proto=ESMTP helo=<lbweb04.brighttalk.com>

How can a company like Brighttalk manage hostnames and corresponding reverse IP mapping in such bad way!? I was forced to temporary “open” my mail server, re-ask for a new password and closed it again. Please, hostmaster at brightalk dot com, check the RFC 1912!