You can enable or disable SPF to allow HES to evaluate the legitimacy of sender's email address before delivering the email to the recipient.
To enable/disable SPF:
- Go to Inbound Protection > Sender Policy Framework (SPF) Peers.
To enable SPF in HES, select Enable Sender Policy Framework.
To disable SPF, clear this check box.
Click OK on the confirmation dialog box.The confirmation dialog box only appears if the domain selected in Managed Domain is all my domains.
If you also want to add the SPF check result into the email message's xheader, select Add SPF DNS check result into message's xheader, then click OK on the confirmation dialog box.
Clear this check-box to disable this setting.