Author: W B Hacker Date: To: exim users Subject: Re: [exim] Wildcard aliases
Yan Seiner wrote: > Roger Burton West wrote:
>> On Thu, Sep 08, 2011 at 11:56:12AM -0700, Yan Seiner wrote:
>>
>>> Is there a simple way to do this?
>>
>> A router with local-part-prefix set?
>>
>> R
>>
> How do I go about setting something like that up? exim works for me so
> well that I never have an opportunity to learn it....
> Any examples for idiots?
>
Not 'for', but maybe 'from'.
Some 'idiots' do this sort of thing in another way (don't ask me how I
know!)
They use an acl_m variable.
... Which is set in an acl with a warn verb before routers are even
reached, using Exim partial string match capabilities and/or lookup
match types.
See 'regex = '
- can work at beginning, end, middle, whatever...
See also the differences between/among lsearch, wildlsearch,
nwildlsearch. Expecially the last...
These can be used with externally maintained flat files instead of
hard-coding into the configure file.
Thereafter, changes do not (necessarily) need full 'root' privs to alter
the configuration file, and do not require a 'restart' of the
master/listener daemon.
That way, you could manage not only 'rt-' but many more strings, and of
arbitrary format - eg not necessarily formally identifiable 'prefix'
The router(s) then test for a flag or specific value in the acl_m loaded
by the 'warn' acl clause. They no longer need the logic to set it - just
react to it.
Further - one can make branching decisions BEFORE reaching the
routers... eg: 'in session'.
