SonicOS 7 Anti-Spam

Listing Allowed Relay Domains

You can list all domains used for relay.

To list an authorized relay domain

  1. Navigate POLICY | Anti-Spam > Relay Domains.
  2. Scroll to the Settings section.

  3. Select whether to restrict relay domains:

    • Any source IP address is allowed to connect to this path – Allows any domain to relay messages. Go to Step 5.

Selecting this option may make a CASS open relay. Even if the mail is not destined to the recipient’s domain, the mail is relayed, which could result in spamming.

  • Any source IP address is allowed to connect to this path, but relaying is allowed only for emails sent to one of these domains – Allows only listed domains to relay messages.
  1. Enter the domain(s) allowed to relay messages in the field. Separate domains with a carriage return (<CR>).

  2. Click Accept.

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