Anyone know what actually a 'sampled out' override reason mean in DMARC aggregated daily reports? I only get those from GMail and recently I've got some complains of undelivered messages from recipients or complaints that messages land in spam folder. My SMTP server log doesn't show any problems, everything sends out smoothly with clear status=sent (250 2.0.0 OK) to gmail recipients.
As far as I know, the override reason is a local policy applied by a receiving server and I just wonder how it affects actual deliverability? I've received a GMail DMARC report today saying that out of total 396 messages sent yesterday:
- 82 messages got no policy or policy override reason applied
- 314 messages got no policy applied, but got policy override reason: sampled_out
I wonder what is the fate of those 314 msgs..