Specifying DMARC Settings Parent topic

IMSVA authenticates email messages of the specified domain and allows administrators to take actions on messages that fail to pass DMARC authentication. If DMARC authentication passes, the messages will be delivered normally. If DMARC authentication fails, the messages will be quarantined, rejected or delivered according to the DMARC settings.

Procedure

  1. Go to Sender Filtering → DMARC.
    The Domain-based Message Authentication, Reporting & Conformance (DMARC) screen appears.
  2. Select Enable DMARC.
  3. Optionally select Insert an X-Header into email messages.
    X-Header is added to indicate whether DMARC authentication is successful or not.
  4. Optionally select Deliver daily reports to senders for authentication failures.
    If you select this option, aggregated reports will be generated daily for authentication failures and sent back to email senders.
  5. Type a domain name for the DMARC verification list and click Add.
    You can import, export and delete DMARC verification list records. Make sure the import file is a text file containing one record per line.
  6. (Optional) Type an IP address for the DMARC exception list and click Add.
    You can import, export and delete DMARC exception list records. Make sure the import file is a text file containing one record per line.
  7. Under Actions, specify actions to take on messages that fail DMARC authentication.
    A DMARC tag instructs recipients how to handle email messages that fail DMARC authentication. There are three values for the tag: "none", "quarantine", and "reject". IMSVA enables you to specify the action to take in each scenario based on the instructions:
    • None: select the action to take when the DMARC tag value is "none".
    • Quarantine: select the action to take when the DMARC tag value is "quarantine".
    • Reject: select the action to take when the DMARC tag value is "reject".
    • No DMARC records: select the action to take when there is no DMARC records.
  8. Click Save.