Criteria

For the filter rules in the Compliance Filter module, you can choose from several criteria.

When you create a filter rule in the Compliance Filter module, you can select a criterion for the filter rule. With the criterion, you define the properties of the emails the rule should be applied to. In the Compliance Filter module, fields for different properties are displayed for each criterion.

The following tables give an overview of the fields that are available for each criterion. The tables contain descriptions of the properties and examples for possible input.

Note:

To define more accurate and flexible rules, you can use regular expressions. For a description of the structure and functionality of regular expressions, see Regular Expressions and Explanation of Regular Expressions. Under Exceptions to Regular Expressions, you will find an overview of unsupported characters.

Table 1. Criterion Header

Field

Description

Example for input

Filter: header

The header of the email is searched for the entered search term.

Invoice

Table 2. Criterion Body

Field

Description

Example for input

Filter: body

The body of the email is searched for the entered search term.

Payment order

Table 3. Criterion Advanced

Field

Description

Example for input

Sender

The envelope sender address of the email is searched for the entered search term.

Note:

The Compliance Filter does not search the header "From" address. As the header "From" address and the envelope sender address may differ, check the envelope sender address of the communication partner before adding the filter rule to the Compliance Filter.

user@gevonne.com

Recipient

The envelope recipient address of the email is searched for the entered search term.

user.extern@yahoo.com

IP

The public IP address of the sending email server is searched for the entered search term.

Note:

Enter the IP address without the subnet mask as a search term.

Right: 0.0.0.0

Wrong: 0.0.0.0/24

Hostname

The PTR record (hostname of the reverse lookup IP) is searched for the entered search term.

mailserver.hornetsecurity.com
Subject

The subject of the email is searched for the entered search term.

Spam

Attachment

The file names and file extensions of the email attachments are searched for the entered search term.

Note:

You can search for a file extension or for a part of the file name.

To search for a file extension, enter the file extension as the search term.

To search for a part of the file name, enter the part to be searched for as the search term.

Note:

You cannot use the collective terms for attachments for the Compliance Filter.

.jpg

express

Larger than

It is checked whether the email exceeds the entered size.

Note:

Enter the maximum email size in megabytes.

500