Seems that Fortinet noticiation systems attempt to use MAIL FROM in their notification systems, which breaks SPF..

CONN: 208.91.114.151 -> 25 GeoIP = [CA] PTR = notification.fortinet.net
EHLO command received after STARTTLS, args: notification.fortinet.net
MAIL command received, args: From:<[email protected]> SIZE=76618

.. where domain is NOT a Fortinet domain, and if it has an SPF record in place, email notifications will fail..

Given the importance of Fortinet notifications right now (hehehe) I am sure they need to be delivered.

This will also be blocked by sender forgery and authentication restrictions..

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