[Pkg-exim4-users] per-address filtering

[Chris Purves]

On 2013-07-18 21:29, Chris Purves wrote:
> Hello,
> 
> I am attempting to synchronize a mailman mailing list with a facebook group.  Facebook will only accept an incoming email from an address of a facebook user that is a member of the group.  Typically those posting to the mailing list will not also be members of the facebook group.
> 
> To overcome this I have added the facebook group email address as a subscriber to the mailing list and an exim system wide filter that rewrites the "From" header to a facebook user.
> 
> This works, but the problem that I have is that the system wide filter re-writes the from header for all recipients, not just the mail going to facebook.
> 
> The exim documentation says that I can make a per-address filter by using a redirect router and gives the following example:
> 
> central_filter:
>   check_local_user
>   driver = redirect
>   domains = +local_domains
>   file = /central/filters/$local_part
>   no_verify
>   allow_filter
>   allow_freeze
> 
> So I added the above to a file in /etc/exim4/conf.d/router and changed the file line to point to the previously working filter file and commented out the domains line, but from watching the mainlog I don't think the filter is being triggered.  I'm not sure if the problem is with the router or the filter.
> 
> I can provide more information, but I thought I would start with that before getting too detailed.
> 
> Thanks,
> 

It seems I can't do what I want.  I was able to get the per-address filter to trigger, but it won't allow me to change headers.  That is only available for a system-wide filter.

-- 
Chris Purves
Visit my blog: http://chris.northfolk.ca