[Mimedefang] OT - Using rDNS sendmail hack - your experiences

[Ben Kamen]

James Ebright wrote:
> You can whitelist users or entire domains from the rDNS check in your access
> file using Niel's hack.
> 

I know... but it just seemed that while I was playing by all the rules, the 
slobs were just making my access file grow to biblical proportions. (shaking 
head some more)

Well, when the person who asked me to turn it off gets flooded with spam.. I 
have a feeling I'll be asked to turn it back on again.

I sometimes (when I'm feeling really generous) call the person in charge of the 
system being bounced, I explain that AOL and others use the same spam detection 
techniques, they'll respond by saying, "our mail doesn't bounce from AOL"...

I reply, "you have a spam folder, don't you"? They usually do.

So then I ask, "how often do you actually weed through the thousands of emails 
to check it rather than just empty it?" They usually don't. They just empty.

I tell them "that's why you don't get bounces. Legit emails from poorly setup 
servers just get filed there. And then *you* delete them."

Then they get it. *THEN* they realize how unreliable email is becoming.

:)

  -Ben