[Exim] smtp-after-pop

Hi,

I have implementet a smtp-after-pop script (the one from the FAQ), it
works fine but we have some problems with the errormessages and the MUA
from Redmont. We give out the text:

--
550-Sie koennen leider ueber
550-diesen Server keine Mails
550-versenden wenn Sie nicht per
550-POP3 angemeldet sind.
550--
550-Bitte erst per POP3 anmelden
550-(E-Mails abrufen).
550-Please authenticate via POP3 first.
550 relaying to <ex@???> prohibited by administrator
--

This should help the Users to find their error and pop in the future.
Now Outlook doesn't understand the error and just gives some of these
stupid MS-Error-Messages (Error Nr. something what nobody knows) but
doesn't show the text.

Has somebody seen the same Problems and has solved them?
I know that not using MS would be the best solution :-)
but you probably know the Users.


Tnx,
Cu,

Sven Callender