So I gave up on this method last night. I found that php has an imap extension, so last night I wrote code to pull the email using the imap functions and got that working. The only problem is I'd have to do a cron job that runs every 60 seconds, which is far from ideal. Or a server daemon (always running script)..
Today I got an email from DH support, and they figured out the problem with my .forward!
I was pointing to the php library here (as I got from other threads regarding both cron and email piping):
Apparently that is no longer a valid path.
/usr/local/php55/bin/php points to a valid installation on their servers.
BINGO. That was it! Working now!!!!
So my .forward now contains (with quotes, and username being your shell username of course):
"| /usr/local/php55/bin/php /home/username/test.php"
(where test.php is just sitting there in the home directory)
Thanks to Rob at DH customer support, a hero!
Hours of time lost, and all I needed was an extra 5. Go figure LOL.
I think they should update their documentation. Apparently not too many people are looking to do this.
Gregpm please confirm you saw this and it solves your problem. Otherwise I will try to help you fix it now that I know it is in fact still possible to do.