Great Circle Associates Majordomo-Users
(September 1996)
 

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Subject: Re: Turning off EXPN (and VRFY) for Majordomo security concern
From: D . Thomas @ vthrc . uq . edu . au (Danny Thomas)
Date: Tue, 1 Oct 1996 13:59:03 +1000
To: majordomo-users @ GreatCircle . COM

>Jason L Tibbitts III said...
>|
>|or just
>|
>|O PrivacyOptions=goaway
>|
>|but this, in my opinion, turns off useful features.
>
>Well, IMO, turning off VRFY does the same thing.
>I'm with Chip.  Many's the time that VRFY has
>saved my bacon, or at least kept it from frying
>at that moment.  EXPN has legitimate uses, too.

I agree it's useful but in any case our sendmail is behind the TIS fwtk
which has been hacked to return a message for VRFY/EXPN referring to a web
pages where email addresses can be looked up/confirmed. Provides most of
the utility for human queries, but netfind does have trouble grokking the
semantics.

Danny Thomas



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