All Systems Operational

Uptime over the past 90 days. View historical uptime.
Mailjet App Operational
Website (Mailjet.com) Operational
SEND API Operational
REST API Operational
Event API Operational
Incoming SMTP Operational
Outgoing SMTP Operational
Email Editor Operational
Email Content Operational
Statistics Display Operational
Premium Features Operational
Form Builder Operational
Mailjet Embedded Operational
Support Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Nov 14, 2026

No incidents reported today.

Nov 13, 2026

Microsoft Incident Resulting in Delivery Issues to M365
Resolved - This incident has been resolved.
Nov 13, 19:01 UTC
Monitoring - Microsoft is experiencing an incident causing an increased volume of deferred emails across all M365 regions. The affected responses are returning "451 4.7.500 Temporary server error" and "421 4.3.2 The maximum number of concurrent server connections has exceeded a limit, closing transmission channel". Our teams are actively monitoring the situation. Sending to other email providers is not affected
Nov 13, 08:36 UTC

Nov 12, 2026

No incidents reported.

Nov 11, 2026

No incidents reported.

Nov 10, 2026

No incidents reported.

Nov 9, 2026

No incidents reported.

Nov 8, 2026

No incidents reported.

Nov 7, 2026

No incidents reported.

Nov 6, 2026

No incidents reported.

Nov 5, 2026

No incidents reported.

Nov 4, 2026

No incidents reported.

Nov 3, 2026

No incidents reported.

Nov 2, 2026

No incidents reported.

Nov 1, 2026

No incidents reported.

Oct 31, 2026

No incidents reported.

Incident History Powered by Atlassian Statuspage