On Fri, 5 Sep 1997, Chris Brenton wrote:
> Humm. How about a process that not only checks that the source IP
> address can be resolved to a valid host, but that it can be resolved
> back to a system which also has a valid MX record.
>
> Just a thought...
The latest smail beta does this, along with other checks intended to deny
relaying spam, or at least make it a little more difficult. Generated
quite a bit of talk on the smail list a month or so ago because Greg
enabled those checks by default and a lot of people found their DNS was
incomplete... You can get smail at ftp.planix.com/pub/Smail.
-cb
---------------------------------------------------------------------------
Chris Briggs chris @
cougar .
alscomp .
com
A.L.S. Computer Systems Network Specialist
Gan, if you're trying to scare me, you're succeeding.
-- Vila [Time Squad]
References:
|
|
