Great Circle Associates Firewalls
(September 1997)
 

Indexed By Date: [Previous] [Next] Indexed By Thread: [Previous] [Next]

Subject: Re: sendmail security
From: Dave Wreski <dave @ nic . com>
Date: Mon, 15 Sep 1997 19:49:26 -0400 (EDT)
To: Cary Conover <carydc @ why . net>
Cc: firewalls @ GreatCircle . COM
In-reply-to: <3 . 0 . 3 . 32 . 19970915051521 . 0088fc10 @ why . net>


> >Pardon me for the intrusion, but why not just prevent everyone trying to
> >connect to your smtp server who is from an outside domain.
> >
> >this would at least prevent spammers from using your smtp server to
> >mailbomb someone else. they would see the message "we do not relay".
> >

> What is the point in this?  smtp is suppose to be there to receive whatever
> mail is sent to it from wherever.  If you only receive it from inside your
> network then WHY are you connected to the Internet?  Why don't you just
> DISCONNECT from the Internet altogether?  Or better yet take a pair of

No, he means 'connecting' in the sense of bouncing messages off your
server to another one, not just opening the connection to send a quick
message.  a.k.a relaying..




Follow-Ups:
References:
Indexed By Date Previous: Re: Microsoft vs The world (apology)
From: David LeBlanc <dleblanc @ iss . net>
Next: RE: Microsoft vs The world (apology)
From: Russ <Russ . Cooper @ rc . on . ca>
Indexed By Thread Previous: Re: sendmail security
From: Cary Conover <carydc @ why . net>
Next: The Different about proxy and firewall..
From: root <security @ students . ml . org>

Google
 
Search Internet Search www.greatcircle.com