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Email Management: Configure Blacklists and Whitelists

 

Access this page from the Configure > Email Management menu.

Use custom blacklists and whitelists to filter email according to administrator defined lists.

  • Read the Email Management Overview topic.

  • Compile a list of known malicious email addresses or domains to add to your blacklist. If an email matches the blacklist, it is considered to be malicious and is handled the same way as an email with a malicious attachment, blocked and a replacement email is sent. If an email matches the whitelist, that email is allowed through without any scanning.

  • It is worth noting that attackers can easily fake the “From” email address of an email, making blacklists a less effective way to stop malicious emails.

The procedure for adding addresses to blacklists and whitelists is the same, although the results are very different. Be sure you are adding the entry to the correct list.

  1. Select Configure > Email Management > Whitelist or Blacklist.
  2. Click the + sign to add a new entry.
  3. Enter the full address in the format name@domain.com . Wildcards and partial matches are not supported, but if you want to include an entire domain, you could enter only the domain as follows: domain.com.
  4. Click OK.