According to the Exim 4.10 documentation for the redirect router, an
unqualified redirection address prefixed with '\' will get qualified to
the original address domain, even when qualify_preserve_domain is not
set on the router:
> If an item begins with ``\'' and the rest of the item parses as a
> valid RFC 2822 address that does not include a domain, the item is
> qualified using the domain of the incoming address. In the absence of
> a leading ``\'', unqualified addresses are qualified using the value
> in qualify_recipient, but you can force the incoming domain to be
> used by setting qualify_preserve_domain.
However, when I have something like:
a: somelocalpart@somedomain
b: \a
in an aliasfile, and qualify_preserve_domain is not set, Exim qualifies
it to the setting of qualify_domain.
I can't find any support for this in the Exim sourcecode, so I think
this is either a bug in the documentation, or a missing Exim feature,
depending on how you look at it. ;) Probably a leftover from Exim 3?
--
Mark
mark@???