Add an Outgoing Allow list Filtering Rule

You can add rules that apply to a specific domain in the Domain Rules tab or, if accessing from the Super-Admin Level, to all domains linked to the logged in Super-Admin in the Admin Rules tab.

  1. In the Super-Admin Level Control Panel, select Outgoing - Protection Settings > Allow list filtering rules
  2. The Super-Admin page is broken into four tabs:

    • Domain Rules - This tab is displayed automatically. Any rules added here can be applied to specified domains only and can be changed by an Admin or Domain user
    • Admin Rules - Switch to the Admin Rules tab to add rules that can be applied to all domains associated to a specified Admin. Rules here are automatically inherited by sub-admins of the assigned admin
    • Default Rules - Default rules are set by the platform administrator
    • Global Rules - Global rules are set by the platform administrator, and are always applied
  3. Switch to the tab required
  4. Click on Add rule:
  5. The dialog displayed here depends on whether you have 'Use advanced custom filtering rules' option enabled in the User profile page. For more information, see Manage Super-Admin Users, Manage Your Admin User Profile or Manage Your Domain User Profile.

    If the option is Inactive you will see the 'Add a new simple filtering allow rule' dialog:

    If this is Active, you will see the 'Add a new advanced filtering allow rule' dialog:

  6. Choose from the following filters:
  7. Field/Option Description

    Simple rule

    Domain (only displayed at Admin Level) Select the domain the rule will apply to
    Username Select the username of the Admin the rule should apply to
    Rule name Add the name of this rule
    Match Use the Match fields to structure your rule

    Advanced Rule

    Domain (only displayed at Admin Level) Choose the domain you want to apply the rule to from those available in the Domain dropdown. When you are accessing this page at the Domain Level, the system applies the rule to the logged in domain
    Username Select the username of the Admin the rule should apply to
    Rule name Enter the name you want to give this rule in the Rule name field
    Priority In the Priority field enter a number to represent the priority given to the rule

    Rules are evaluated by Priority from the lowest number to the highest number, until one matches or all rules have been checked. All Allow list rules are checked before Block list rules.

    Header name If you want to restrict the check to a particular header, enter the Header name. You may enter a regular expression here, if required
    Regular expression

    Enter the regular expression for the rule in the Regular expression field

    Use the Cheatsheet panel on the right of the page for examples of how to build your regex.


    Choose what you want the rule to match. The following options are available:

    • Subject
    • To
    • From
    • CC
    • Country
    • Continent
    • Message Body
    • Recipient
    • Sender
    • Sender IP
    • Sender Hostname
    • URL
    • Language
    • Attachment Type
    • Attachment Name
    • Attachment Type (auto-detect)
    Flags The following flags are available:
    • i (ignore case)
    • m (^ and $ match start and end of line),
    • s (. matches newline)
    • x (allow spaces and comments)

  8. Click Save when finished

Unfortunately, the Technical Support team is unable to support any customisation of the predefined Rulesets or those you build yourself.

Due to the potential complexity in building a regex pattern, we advise that only users with regex experience should attempt to create new rules or customise existing ones.