[Dovecot] simple steps with sieve

[Gavin Hamill]

On Tue, 2009-10-20 at 17:34 +0200, Stephan Bosch wrote:
> Peter Borg wrote:
> > I find it really hard to believe that Gavin and I are the only ones to hit
> > this issue. That said I've probably been hacking at this particular system
> > too long and am missing something very obvious....!
> > 
> You're definitely not the only one. Finding a good solution is difficult 
> however. The intention of this check within the vacation action is to 
> prevent spurious vacation responses to for example Bcc:'ed deliveries 
> (and perhaps multi-drop aliases).

For my own situation, I solved this issue entirely from the 'roundcube'
webmail package. Help on the roundcubeforums site suggested changes to
the 'sieverules' plugin so :addresses would always be included in a
vacation rule. I extended this to the :from parameter.

Also used roundcube's new_user_identity plugin to populate the primary
identity of a 'ar-wbim' username with 'wim.bim at ourdomain.com' so that
the :from and :addresses are using the canonical format

Fairly ugly, but it works for us. I'll document the changes if I get a
moment.

Cheers,
Gavin.