This source is known to forward email
forwarding notes:This is a large service/hosting provider. If messages appearing in Forwarding are actually original, you'll probably need to get the sender to apply correct SPF authentication using your domain. Also if the shown volume is high enough, contact support@dmarcian.com to request a rule update/breakout - note that this cannot change compliance numbers.
This is a large service/hosting provider, so your service may be via a customer of theirs; use the data shown to determine which vendor to contact regarding DMARC compliance guidance. If the shown volume is high enough, contact support@dmarcian.com to request a rule update/breakout.