On Fri, 13 Apr 2001, Chad Leigh, Pengar Enterprises, Inc & Shire.Net LLC wrote:
> host_reject = ! xxx.yy.zz : *.yy.zz : ! *.zz
>
> rejects mail from any host outside the zz domain, and all hosts in the
> yy.zz domain, except for xx.yy.zz. The use of wildcarded names implies a
> reverse DNS lookup of the incoming IP address. This can be avoided by using
> IP addresses. See section 7.13 for details.
> "
>
> Why does this "reject mail from any host outside the zz domain"?
Because, if a host list ends with a negative item, Exim behaves as if it
has ": *" on the end of it. This is done so that simple lists like
host_reject = ! *.zz
work the "natural" way, i.e. like
host_reject = ! *.zz : *
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
