Date: Sun, 17 Nov 1996 23:48:22 -0800 From: Don Lewis <Don.Lewis@tsc.tdk.com> To: roberto@keltia.freenix.fr (Ollivier Robert), freebsd-security@FreeBSD.org Subject: Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2). Message-ID: <199611180748.XAA14898@salsa.gv.ssi1.com> In-Reply-To: roberto@keltia.freenix.fr (Ollivier Robert) "Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2)." (Nov 18, 7:06am)
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On Nov 18, 7:06am, Ollivier Robert wrote: } Subject: Re: BoS: Exploit for sendmail smtpd bug (ver. 8.7-8.8.2). } According to Don Lewis: } > Qmail doesn't do all the ESMTP negotiation that sendmail does. It keeps } > qmail simpler and less likely to be buggy, but not as functional. For } > instance sendmail 8.7.x supports: 8BITMIME, SIZE, DSN, VERB, ONEX, but } > whatever version of qmail I just checked only supports 8BITMIME and } > PIPELINING. Sendmail 8.8.x adds ETRN. } } I don't think it handles 8BITMIME at all even if it announces it. Does it } support rewriting from 8bit to 7bit and reverse ? I think you may be right. I seem to recall from the discussions on comp.mail.sendmail that qmail only announces this to keep sendmail from doing an 8->7 rewrite. Other than that, qmail just sends 8 bits even if it is talking to some crusty old mailer that strips of the eighth bit or just goes bezerk when it receives a message containing characters with the high bit set. } > Sendmail's support of UUCP isn't wonderful (mostly a problem of } > getting DNS totally disabled). How well does qmail support UUCP? } } That's a common misunderstanding. UUCP support in sendmail is pretty good } (see my other mail). I would have been a lot happier in my UUCP email days if sendmail had supported BSMTP (I think there was a version that did, but it wasn't the one I was running). --- Truck
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