Autosupport mail is rejected by "DMARC unauthenticated mail is prohibited" Last updated Oct 13, 2022 Save as PDF Share Share Tweet Share Views:154Visibility:PublicVotes:0Category:ontap-9Specialty:CORELast Updated:10/13/2022, 7:24:26 AM Applies to ONTAP9 Issue Failed to deliver Autosupport mail to autosupport@netapp.com. 550 #5.7.1 DMARC unauthenticated mail is prohibited.