Re: [Exim] vulnerabilities

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著者: Steve Haslam
日付:  
To: exim mailing list
題目: Re: [Exim] vulnerabilities
On Fri, Jan 28, 2000 at 08:51:15PM +0000, Philip Hazel wrote:
> On Fri, 28 Jan 2000, Steve Haslam wrote:
> > EHLO is for negotiating ESMTP. I don't that turning it off is
> > useful. I don't think Exim supports it.
>
> Of course Exim supports it! The RFCs mandate that an MTA must support
> it. It doesn't have to treat it differently to HELO, though. However,


Er, I meant Exim doesn't support disabling it. Which may or may not be
true- but I can't see the advantage in disabling it anyway.

> > RCPT is a vital piece of the SMTP protocol. Your mail server has to
> > support this to be useful.
>
> Well, a server that accepted messages only via the non-SMTP interface
> could still be classed as "useful", IMHO, but it wouldn't be *very*
> useful. :-)


True. But a mail daemon accepting SMTP connections that didn't support
RCPT would be challenging to find a use for.

MAIL FROM:<steve.haslam@???>
220 Sure
RCPT TO:<shaslam@???>
550 Just kidding

:}

SRH
-- 
Steve Haslam, Production Engineer, Excite UK     steve.haslam@???
                               i sit and stare at the gun pointed at my head
                                       and think about all the possibilities