Manage Sender Block list - Email Level

Incoming mail received from senders listed in the Sender Block list will always be rejected.

  1. Click on Block sender to open the dialog:
  2. Choose which address you want to apply the block to by selecting from the following Sender Flags:
    • Apply to Envelope Sender - The SMTP Envelope from address only
    • Apply to From: Address - The MIME message address only
    • Apply to both - both the SMTP Envelope from address and the MIME message address
  3. In the Address field, enter the email address of the sender you want to block

    To add a whole domain to the sender Block list, use a wildcard here by entering the domain in the format: *@domain-to-blocklist.tld

  4. Click on Save to add the sender