Errors still occurring even after the DNS update.
Users attempted to register receive this:
"Registration denied. We check new registrations against a database of known forum spammers. At this time, we are unable to contact this database to verify your registration. We are sorry for the inconvenience but please do try again later."

Maybe your servers dns server is caching a nxdomain result. try this

<?php
var_dump(@gethostbyname ('www.stopforumspam.com'));
?>

Upload that to your server and post back what results it gives

Sorry for the question, where do we put that? vbstopforumspam.php?

create a new file called anything, like testsfs.php, and upload it and then load it in your browser. It reports back the status of your servers DNS resolution.

OK, thanks!

I'll report back with results.

Results:

string(21) "www.stopforumspam.com"

Still getting: [REMOTEERR] Unverfied but allowed by policy

that's odd, it should have returned something like:

That shows that DNS isnt resolving. Try this one, which might or might not work as some hosts dont allow exec()

<?php


exec('TERM=xterm nslookup www.stopforumspam.com', $dig, $error );
echo nl2br(implode("\n",$dig));
if ($error){
exec('TERM=xterm nslookup www.stopforumspam.com 2>&1', $error );
echo "Error: ";
exit($error[0]);
}


exec('TERM=xterm dig www.stopforumspam.com', $dig, $error );
echo nl2br(implode("\n",$dig));
if ($error){
exec('TERM=xterm dig www.stopforumspam.com 2>&1', $error );
echo "Error: ";
exit($error[0]);
}
?>

Get this: