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.

Sep 10, 2026

No incidents reported today.

Sep 9, 2026

No incidents reported.

Sep 8, 2026

No incidents reported.

Sep 7, 2026

No incidents reported.

Sep 6, 2026

No incidents reported.

Sep 5, 2026

No incidents reported.

Sep 4, 2026

Microsoft Incident Resulting in Delivery Issues to M365
Resolved - This incident has been resolved.
Sep 4, 12:55 UTC
Monitoring - Starting around 08:00 UTC, Microsoft began experiencing an incident causing an increased volume of deferred emails across all M365 regions. The affected responses are returning "451 4.7.500 Server busy". Our teams are actively monitoring the situation. Sending to other email providers is not affected.
Sep 4, 12:23 UTC

Sep 3, 2026

No incidents reported.

Sep 2, 2026

No incidents reported.

Sep 1, 2026

No incidents reported.

Aug 31, 2026

No incidents reported.

Aug 30, 2026

No incidents reported.

Aug 29, 2026

No incidents reported.

Aug 28, 2026

No incidents reported.

Aug 27, 2026

No incidents reported.

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