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    October 2025

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    23 October 2025

    Complete Ended: 14:00 EDT - 23 October 2025

    System Maintenance

    We will be performing system maintenance on October 23rd between 1:00-2:30 PM EDT. No issues are expected during this period.

    View notice →

    22 October 2025

    Resolved Ended: 22:40 EDT - 22 October 2025

    API Latency and Timeout Errors

    Starting on approximately September 8th, some customers experienced intermittent latency and timeout errors for some non-sending related API endpoints. The a...

    API
    View notice →

    21 October 2025

    Resolved Ended: 00:30 EDT - 21 October 2025

    Upstream Cloud Provider Outage

    Engineers have confirmed most of Postmark's systems should not be affected by the upstream cloud provider outage. The team is closely monitoring and will pro...

    SMTP
    View notice →
    2 Days without incident

    18 October 2025

    Resolved Ended: 00:21 EDT - 18 October 2025

    Intermittent Web Application Availability

    Starting at approximately 9:46pm EDT on October 17th, the web application was intermittently unavailable or experienced slow response times for some customer...

    Web App
    View notice →
    7 Days without incident

    10 October 2025

    Resolved Ended: 12:13 EDT - 10 October 2025

    Partial Service Outage (Sending Not Affected)

    We are experiencing a partial service outage. Email sending is working normally. Engineering is actively investigating the issue and impacted areas. Some cus...

    Web App Login & Authentication
    View notice →
    September 2025

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