Hello there,

I am currently using our ISP's SMTP Smart Host for sending all email traffic
from our Exchange Server 2003 SP2 to the outside world.

I have followed the Microsoft article KB317327 but this does not seem to
have worked; is this because I am using the ISP smart host?

From the article mentioned above, the only element I could not complete is
the "add Server Extension Objects COM Library" as it was not available and
the DLL refused to compile unless I removed the line "Implements
IEventIsCacheable".

Your thoughts would be appreciated!

Please let me know.

Many Thanks

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> I have followed the Microsoft article KB317327 but this does not seem to
> have worked; is this because I am using the ISP smart host?

No, it's perfectly feasible to change any data *that is submitted over
SMTP*, regardless of where the message goes next (smart host or direct to
MX).

I hope you read the note that "If you use a MAPI client, such as Microsoft
Outlook, to send the e-mail message, the recipient does not receive a
modified e-mail message"... this restriction is very hard, though not
completely impossible, to work around using SMTP event sinks only on a
single box, and if you're going to need to work around it, get ready for a
long slog.

Before I continue, then: are you *expecting* MAPI messages to get tagged?
Is that what you expect to have worked?

--Sandy

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