Re: Verizon hosting spammers :)

[Menno van Bennekom]

> This was sent to me off-list.  It's an interesting look at the
> implications of doing callbacks:
This is I think the same as the address verification of postfix.
At the postfix site there are big warnings about this, don't use it with
high traffic mailservers and you can be blacklisted by using this.
See: http://www.postfix.org/ADDRESS_VERIFICATION_README.html
I'm not using this option, it indeed seems a bit too rude to me..
Menno