[exim] Negation list - NOR statement

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Author: Frank DeChellis
Date:  
To: exim-users
Subject: [exim] Negation list - NOR statement
Hi there,

I am trying to create a negation for a host list. If I understand
correctly, multiple items on a line are ³OR² together.

Hosts = !+host_list1 : !+host_list2

If I understand correctly again, I am setting up a resultant NAND function
by negating the two lists that are ³OR² together. Boolean Algebra 201.

How would I create a ³NOR² function between the two lists , so I can say
that the host name is neither on list 1 nor list 2? I tried various
syntaxes with no luck. I guess I would have to bracket the two lists
together and negate the whole thing ... But how?

Any ideas for me?

Thanks
Frank





Frank DeChellis
President, Internet Access Worldwide
Welland, Ontario, Canada
www.iaw.com