[Exim] Authenticated sender

Hi !!

As for Section 32.4 from online docs it seems that Exim only puts the value
from the AUTH parameter on incoming SMTP MAIL command to $authenticated_sender
if both the client host has authenticated itself and expansion of the
server_mail_auth_condition on the authenticator expands to true, but is there
any way to get this value on $authenticated_sender when the client host has
not authenticated itself ?

Will Exim when it receives a MAIL FROM with the AUTH parameter, and this mail
is forwarded to another host, supply the same AUTH parameter when delivering
that email ?

Is possible to set the AUTH value for Exim to use when delivering email (on
a email by email basis) ?

--
Thanx & best regards ...

Toys are made in heaven, batteries are made in hell.

----------------------------------------------------------------
   David Saez Padros                http://www.ols.es
   On-Line Services 2000 S.L.       e-mail  david@???
   Pintor Vayreda 1                 telf    +34 902 50 29 75
   08184 Palau-Solita i Plegamans   movil   +34 670 35 27 53
----------------------------------------------------------------