Event description: Google reported an increase in the rate of invalid recipients (hard bounces)
gmail.com recipients were marked as invalid for the period of this incident: 14 Dec 2020 10:00 UTC - 15 Dec 2020 12:00 UTC
Impact: Some emails sent to gmail.com domain during issue period were not delivered and bounced with error "invalid recipient"
Additional references: https://status.sparkpost.com/incidents/9p864chxj68k
Planned further actions: Issue is resolved now, no further actions planned. Bounced emails are safe to re-send
Resolved: Issue has been resolved.