Peter H. Lemieux wrote:
Billy Huddleston wrote:
Reverse DNS is a must. I'm surprised at how many people still haven't
got that yet in the IT world.. (Consultants mostly..)
It's not uncommon outside the industrialized world. Last few days I got
a few false positives for a client that was corresponding with folks in
the Caribbean.
One of the few services I believe AOL provided the rest of us was
deciding a few years' back not to accept mail from servers without
reverse DNS. Suddenly lots of admins had to deal with the problem of
correct server configuration because you couldn't fail to deliver mail
to the millions of AOL users worldwide.
Unfortunately, AOL only validates in one direction and some people only
do the bare minimum.
