nanog mailing list archives

Re: disabling SMTP


From: Richard Welty <rwelty () averillpark net>
Date: Sun, 28 Mar 2004 10:57:16 -0500 (EST)


On Sun, 28 Mar 2004 10:22:44 -0500 (EST) Richard Welty <rwelty () averillpark net> wrote:

i should add that i think that this proposal is a bad idea for any
number of reasons, but this cisco pix thing is very concrete
so i just wanted to get it out there.

before i write an extended explanation of why i don't like this
idea much, i'd very much like to hear some of the motivation
behind the proposal. i don't see where a client that gives EHLO
and then doesn't negotiate any options is any different from a
client that gives HELO, so i just don't see what refusing to
accept email from HELO clients is supposed to buy you.

on the server side, i don't see what refusing to send email
when you don't see ESMTP in the banner accomplishes
either.

in either case, such a policy would only last until a VP
figures out that you're responsible for his inability to
exchange email with his mistress.

richard
-- 
Richard Welty                                         rwelty () averillpark net
Averill Park Networking                                         518-573-7592
    Java, PHP, PostgreSQL, Unix, Linux, IP Network Engineering, Security


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