MailScanner and Exchange 5.5

[Jeff Mills]

  Is there another way of
> accomplishing this with either sendmail or mailscanner or even on
> exchange?

I'm using postfix/mailscanner in front of exchange, and I use a pearl script to pull valid email addresses from AD and populate a file for hashing in postfix.
Some info here:
http://wiki.mailscanner.info/doku.php?id=documentation:configuration:mta:postfix:how_to:reject_non_existent_users#ms_exchange

Postix's relay_recipient_maps points to this file, and invalid email addresses are immediately rejected.



*** "This company is now part of the Versacold Holdings Corp. and is no longer owned by or affiliated with the P&O Group" ***

Please update your address books: 
Was: firstname.lastname at pocold.com.au
Now: firstname.lastname at versacold.com.au

************** www.versacold.com **************