Hi

Ever since I began using postfix, a LOT of my mail is rejected by
various ISPs as spam.

I am not a spammer, just a regular guy who sends maybe 10 emails a day,
on a busy day.

But these days, most ISPs - especially the big ones like Yahoo and
Hotmail and Gmal, etc - reject anything that is not sent through a
recognized mail server.

So much for net neutrality!

How can postfix be used without my messages being tagged as spam?

thanks!