Configuring Content & Attachment checking

Introduction to content checking

This chapter explains how to set up content & attachment checking in GFI MailSecurity. The content checking feature allows you to setup a policy regarding what types of email you will allow on your mail server.

To set up such a policy, GFI MailSecurity uses the concept of 'Rules'. A rule is a condition that you set, for example, blocking all executable attachments.

Other examples of rules are:

blocking all mails which contain certain words
blocking all mails with attachments that can contain programs or scripts. (*.vbs) (Love Letter!)
blocking certain users sending attachments all together.

Types of Content checking rules

There are two types of content checking rules:

Content checking rule - this rule allows you to search a mail message and its attachments for certain words. This allows you to block mails and attachments with certain content. For example, you can block attachments with specific words.

Attachment checking rule - An attachment checking rule allows you to block attachments of a certain type.

Both rules can be applied to all users or a specified list of users.