Adding Sender IP Match Settings

Trend Micro Email Security allows you to specify an IP address or a range of addresses within a sender domain identified by the message header address to allow email messages only from those addresses. If an email message passes the Sender IP Match check, Trend Micro Email Security skips its own SPF check as well as the SPF check of DMARC authentication for this message.

  1. Go to Inbound Protection > Domain-based Authentication > Sender IP Match
  2. Click Add.

    The Add Sender IP Match Settings screen appears.

  3. Select a specific recipient domain from the Domain name drop-down list.
  4. Select Enable Sender IP Match.
  5. Under Domain-IP Paris, add one or multiple domain-IP pairs.
    1. Specify a sender domain using one of the following formats:
      • example.com

      • subdomain.example.com

      • *.example.com

    2. Specify one or multiple IP addresses or IP/CIDR blocks to pair with the domain.
    3. Click Add.
  6. Under Intercept, specify the action to take if the sender IP address does not match the sender domain as you specified.
    • Delete entire message

    • Quarantine

  7. Under Notify, choose to send notifications and select at least one notification template.
  8. Click Add.