Add Outgoing Block list Filtering Rule

  1. In the Admin Level or Domain Level Control Panel, select Outgoing - Protection Settings > Block list filtering rules
  2. Navigate to the appropriate tab: Domain Rules or Admin Rules
  3. Click on + Add rule
  4. The dialog that is displayed here depends on whether you have enabled or disabled the Use advanced custom filtering rules option in the User profile page. For more information, see Manage Your Admin User Profile or Manage Your Domain User Profile.

  5. Configure the Block list rule as per the filter rule type:
  6. Click Save

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.

Attachment Hash Rule Specifics

The Hashing Algorithm field that is displayed once Attachment Hash is selected in the Match field is compulsory. Fill this with the algorithm type used to generate the hash for the file to be matched. E.g.:

  • MD5
  • SHA-224
  • SHA-256
  • SHA-384
  • SHA-512