Question : Reverse DNS question

my domain www.mydomain.com is having problems sending mail...on a few emails, I am getting boucnebacks reporting that my MTA reputation is too low.   I did a DNS check at DNSstuff.com and got this:

Reverse DNS authenticity: [Could be forged: hostname xxxx.xxx.myhostIP.com. does not exist]

So I have bad reverse DNS

My email server is directly on my website (I am using a dedicated server)...so  www.mydomain.com is my website, and my email server.  

My ISP is willing to configure my reverse DNS to be whatever I want.  I thought maybe I should have my reverse DNS point back to mydomain.com  but then  I did some reverse DNS lookup's on about a dozen other domains, and none of them point back to themselves.

For example, this is all too common:

www.mydomain.com --->  33.999.23.243
 33.999.23.243 ---> blah.computer.HostISP.com

Is it bad policy for me to setup reverse DNS like this:
www.mydomain.com --->  33.999.23.243
 33.999.23.243 --->www.mydomain.com

How should I have my reverse DNS setup?

Answer : Reverse DNS question

you would want your reverse dns to point to whatever your email server dns name is.

email.mydomain.com --->  33.999.23.243
 33.999.23.243 --->email.mydomain.com