Smartsheet change history: Brandfolder: SendGrid notifications not processing "Your account was frozen due to unpaid invoices"

Brandfolder reported a major incident affecting SendGrid invitations and notifications; customers could also see “Your account was frozen due to unpaid invoices.” The incident ran from 2025-10-27 12:51 UTC to 2025-10-27 14:56 UTC (2 h 5 min). Smartsheet attributed email delays to a third-party email processing disruption and reported implementing a fix.