SendGrid SMTP/API mail send failures

Original incident notification from SendGrid
These maintenances affect outgoing email on the Zenith Media Canada Network of servers, all outgoing email unless configured by the client to do otherwise rely on the smart host gateway of SendGrid.

Mar 1, 22:47 PST
Resolved - Our engineers have monitored the issue and confirmed that is has been resolved. All services are now operating normally at this time.

Mar 1, 21:56 PST
Monitoring - We are still monitoring performance to make sure that the issue has been fully resolved post rollback.

Mar 1, 21:54 PST
Update - Certificate rollback has been completed for SMTP and API. We are still monitoring performance to make sure that the issue has been fully resolved.

Mar 1, 20:59 PST
Update - Our engineers have identified the issue and are working towards mitigation. We will provide another update in 1 hour or as soon as more information becomes available.

Mar 1, 20:34 PST
Identified - We have recently rolled out a new certificate change for SMTP and API while some clients are experiencing compatibility issue with new certificate.

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Have an issue thats being affected by this maintenance? Open a Ticket and we can help you find a solution.