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. 

Creating a content checking rule 

To create a content checking rule: 

1.  Highlight  the  content  checking  node  in  the  GFI  MailSecurity 

configuration. Right click and select New> Content checking rule. 

2. A new rule will be created in the right pane. Highlight this rule and 

double click it. A tabbed dialog will appear. 

Configuring Content & Attachment checking 

 27