[Dovecot] When should dictionary entries for the expire plugin be added/updated?

[Thomas Leuxner]

Am 25.08.2010 um 19:51 schrieb Ralph Seichter:

> I wonder if you might have a suggestion for configuring the drop-the-
> server-and-domain-part of the recipient address on the Postfix side?
> Timo's idea works just fine, but as it has consequences for all username
> lookups within Dovecot, I'm open to look at alternatives.

Unless I missed again (double-checked) what authentication backend do you use? Can you post an excerpt? This may get more opinions from the list as I use unspectacular flat files.