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Adding, Deleting & Importing to Block Lists

Go to Filter Rules > Domain (Group) Block List to block specific email addresses or domain names. If you block an email address or domain, then mail from that address or domain to any domain in your domain group will be blocked before it reaches its recipient. 


The Domain Group Administrator will see a Domain Group Block List tab and a Domain Administrator will see Domain Block List tab.


Allow and block lists are bypassed if the Spam should be: setting is set to Passed (Tagged) for a user or domain policy.

Adding a Block List Entry

  1. Click Add....

  2. Enter the Sender Email: in the form of or Sender Domain: in the form of

  3. Enter Comments: as necessary.

  4. Click Save.

Deleting a Block List Entry

  1. Check the box to the left of the email address or domain name you want to delete. Check multiple boxes to delete several entries at once.

  2. Click Deleteunder Blocked Email Addresses or Blocked Domains.

Importing Block List Entries

  1. Create a single text file with all the entries to import (both email addresses and domains can be imported together from the same text file). The file must have one email address or domain (preceded by the '@' sign) per line. For example:




      To include subdomains, add a period (.) after the @ symbol for the domain.

      For example:

  2. Click Import..., select the text file and click Open.

  3. Email addresses will be listed in Blocked Email Addresses and domains will be listed in Blocked Domains.