Spam Soap service is designed to automatically create users for email addresses which are considered valid (250 SMTP reply code) and to deny email for users considered invalid (550 SMTP reply code). This is especially helpful to keep an accurate list of Users in the Spam Soap console and to generally process less email on your Exchange server. By default, Exchange 2007 will accept all email and then internally generate the Non Delivery Report and reject the email. The changes below will cause your Exchange server to reject the message toward the beginning of the SMTP session.


These tips are provided by Spam Soap at www.spamsoap.com