Re: Your order

[Bill Hacker <wbh@xxxxxxxxxxxxx>]

Matthew Dillon wrote:
>     Bleh.  This is annoying.  The spams are using a From: field for a
>     subscribed user.
>
>     Anyone know an easy way to disallow use of crater's domain name
>     in the From: field for SMTP connections from remote locations?
>     using sendmail?
>
> 					-Matt
> 					Matthew Dillon 
> 					<dillon@backplane.com>

Using Exim it is dead-easy. Sendmail is capable enough - but sort of 
like working in machine-code. For a Varian 520i... haven't done either 
one is *years*...

;-)

But the forgery won't matter if you reject on rDNS fail of an incoming IP.

'Real' MTA have proper PTR RR. Always.

Zombies, never.

Bill