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Mark Weaver wrote on Sat, Jan 18, 2003 at 06:05:27AM -0500 :
> >>cause nuttin is getting through...I'm gonna shoot dis damn thing!
> >basics... your having a "relay" problem which is OK since you don't want
> >to be an open-relay... the trick is to figure out how to allow those
> >domains through that are legit in your case... for me, it wasn't until I
> thanks Pierre...I "definately" have some more reading to do. I've gotta
> digest this stuff and get inside Postfix's head.
This is the thing to remember. You don't want to enable "relay by
domain". Why? Ok, you're at domain "weaver.com" for example. You
allow anybody who has an email account with you to relay through your
machine.
Ok, I say I'm "[EMAIL PROTECTED]" and I send my 2 million spams how to
make your sex better. Since it's from "@weaver.com", your mail server
happily relays all 2 million messages PLUS gets all the bounces.
I hope you can see how fallible that is.
The correct solution is pop-before-smtp or (best) authenticated SMTP.
Blue skies... Todd
- --
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