Re: [exim] deny hosts problem with IPs that don't resolve to…

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Autor: Philip Hazel
Datum:  
To: John W. Baxter
CC: Exim users list
Betreff: Re: [exim] deny hosts problem with IPs that don't resolve to hostnames
On Tue, 3 Jan 2006, John W. Baxter wrote:

> Your deny looks right, but I've been around computers for a long time (since
> 1957, not counting looking over work my mother brought home before that),
> and I *still* get into trouble combining negative tests. (I do sometimes
> get it right.)


Humans just do not like combining negatives. Consider "I could not fail
to disagree more." It takes a while to figure it out...

-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book