Resolved -
This certificate issue prevented access to Paubox Hosted Mail inboxes, and Paubox’s Secure Message Center (recipients viewing messages delivered via secure link). In addition, this prevented some organizations from sending email: API customers sending via SMTP Server Solution, and Email Suite customers using Google Workspace with MTA-STS enabled / requiring signed certificates. The issue was resolved Sept 5 at 7:45pm PT.
Sep 5, 21:00 UTC