SMTP Authentication Issues

Resolved
Resolved

We've now resolved the incident. Thanks for your patience.

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Postmark Support
Recovering

Customers may experience SMTP Authentication issues with API keys generated on or after Saturday, September 6). Customers using older keys should not be impacted.

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Postmark Support
Began at:

Affected components
  • SMTP
    • General
    • Sending
    • Receiving