Date: Thu, 19 Mar 1998 15:59:15 -0800 (PST) From: "Jonathan M. Bresler" <jmb> To: jfmays@launchpad.win.net (Joe Mays) Cc: freebsd-isp@FreeBSD.ORG Subject: Re: spam blocking in sendmail Message-ID: <199803192359.PAA03815@hub.freebsd.org> In-Reply-To: <3511A033.6A780275@launchpad.win.net> from Joe Mays at "Mar 19, 98 05:46:11 pm"
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Joe Mays wrote: > On a related note: I just ran into an issue today with > spammers that leads me to a sendmail.cf question. > > Someone out there is generating spam mail (we've encountered > it from more than one domain) that has a blank X-UIDL: > header. This is a real problem for MS Outlook and Outlook > express. When they attempt to download messages from the > pop server which contain this header they hang and give a > pop-server timeout. Netscape has no problem downloading > them, though it may screw up the indexing in the inbox list, > not sure about that yet. > > In the strictest sense this is an MS Outlook problem. The > blank X-UIDL header should not halt the download. In the > real world, it looks to our customers as though our pop > server is dying. Does anyone know if it is possible to have > a sendmail.cf ruleset that watches for empty X-UIDL headers > and bounces them if they occur. i do not know of any way of doing this in the current version of sendmail. sendmail 8.9.0, which is now in beta, *may* be able to do this. procmail definately can hanlde this problem. jmb To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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