Re: [Exim] Exim4: allow_defer/fail but not blackhole

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Autor: Philip Hazel
Datum:  
To: John Horne
CC: Exim Users List
Betreff: Re: [Exim] Exim4: allow_defer/fail but not blackhole
On Wed, 24 Jul 2002, John Horne wrote:

> Exim 4.10 manual page 145 shows the redirect router has the 'allow_defer'
> and 'allow_fail' options, but then 'forbid_blackhole' (over the page). I
> tend to class these things together - defer/fail/blackhole - so in that
> respect shouldn't an 'allow_blackhole' be available? Or the other way -
> 'forbid_defer' and 'forbid_fail'?


I suppose it is a bit of a confusion. What I did was to decide which
would be "on" by default. For those I provided "forbid" options. For the
rest, which are "off" by default, I provided "allow" options. In other
words, which option there is depends on the default.

Providing both an "allow" and a "forbid" option for the same thing would
be confusing, because if both were given, which one should prevail?

Of course, I could turn them all into one or the other, with suitable
"true" or "false" defaults. In that case, it would have to be "allow", I
think, because "forbid_xxx = false" is a double negative, which is
always confusing.

--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.