manual

13. Content Filtering
Content Filtering helps you filter e-mail messages based on certain character strings
found in the e-mail headers (subject, from, to, cc) or in the e-mail body. By using
Content Filtering, you can achieve the following goals:
prevent unwanted mail content from entering the Exchange server mailboxes.
block outgoing mail containing confidential data.
archive messages that meet specific conditions (for example, those coming on your
company's support e-mail address) to a different e-mail account or on the disk.
Content Filtering is by default enabled, but all messages are allowed to pass without
being scanned. To use Content Filtering, go to the Policies tab and configure the
default rule. The default rule manages the content filtering settings for all mail traffic
reaching or leaving the server. By adding new rules, you can create different filtering
policies based on the groups the sender and the recipients belong to.
Content Filtering
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BitDefender Security for Exchange