Mailchimp Outage Log Archive: 2026

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 2m

Mailchimp Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 45m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 47m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 29m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 30m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 57m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 28m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 7m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 25m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 35m

Mailchimp Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 50m

Mailchimp Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 1h 14m

Mailchimp Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 1h 19m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 6m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 57m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 30m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 27m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 1h 3m

Mailchimp API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 36m

Mailchimp Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 49m