On Dec 15, 2015, at 3:47 PM, Juerg Reimann <j...@jworld.ch> wrote:
> 
> I need a catch-all configuration for a domain, but only for otherwise
> non-existent addresses. How could I do that? If I configure catch-all as
> described in VIRTUAL_README, every mail to that domain is forwarded, even
> those for real users...


If your virtual users are in sql I a simple ordered and limited query could 
work.

# Untested:
select
    t1.*,
    case when t1.account = “ALL” then 1 else 0 end as catchall
from users t1
where t1.account in (“%u”, “ALL”)
order by catchall asc
limit 1

—
Brad

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