Hi
> http://www.exim.org/pipermail/exim-users/Week-of-Mon-20040816/
> 075152.html
>
> This uses LDAP into the active directory to do recipient
> verification, which will enable Exim to refuse bad recipients
> and avoid the problem you're having in its entirety.
This is IMHO a bad idea.
The better idea is to setup Exchange not to accept bad recipients and do
recipient callout verification from exim instead.
Brings you the advantage of not needing to access the global catalog, ease
of exim configuration and internal smtp client handing.
It is not possible with exchange 5.5 though, which accepts anything and
bounces then (because the internet connector is a completely separated
component that has not even access to the recipient list). Running exchange
5.5 nowadays is a bad idea anyway.
Anyway it is possible by default in exchange 2003 and possible with CDO
scripts in exchange 2000.
Regards,
Steffen