Re: [exim] Recursive Lookups

Tony Finch wrote:

> On Tue, 4 Jul 2006, W B Hacker wrote:
>
>>Tony Finch wrote:
>
>
>>>I suppose we could do so with a much more complicated database
>>>infrastructure, but why bother when Exim can resolve it at run time?
>>
>>It is not only 'possible' to do this in a 'flat' model, it is
>>simple and quite easy to provide to diverse managers, groups,
>>and users. [...]
>>
>>- One or more DB (SQL or other) with 'n' domains, each of which
>>has 'nd' departments, 'nds' sub-departments, etc. as far down as
>>you need to go (3 to 5 levels?).
>
>
> You make my point for me. Our infrastructure for this is just a load of
> aliases files and a simple user interface for editing them. The fewer
> programs we have to manage the better - hence no SQL database.
>
> Tony.

?? When you said:

> (PS. I've sketched over the fact that users can independently control
> redirection of their @cam and @hermes addresses, which is indeed a bug
> because they have two ways to control the same functionality without any
> protections against getting in a mess. We avoid most of the problems
> because the @cam redirection is much more obscure than the @hermes
> redirection. The point is that you minimise support costs by minimising
> the number of ways of doing something.)

I thought you were making *my* point for me... (we use ONE DB,
replicate it even to servers that use only a portion of it)

Either way, we've outlined examples and the pros and cons of the
extremes, so folks can do whatever (else) best suits their own
environment.

;-)

Regards,

Bill