Resolved Ended: 08:48 EDT - 26 September 2025
Intermittent Inbound Email Delays
Engineering is currently investigating an issue impacting the processing of inbound messages. Customers may see intermittent delays in inbound message delive...
Complete Ended: 22:50 EDT - 18 September 2025
[Scheduled] Database Maintenance
On September 18th 2025, between 9:30-10:30pm (Eastern Time), engineers will be performing maintenance on some Postmark database systems. During this time, cu...
Complete Ended: 23:30 EDT - 17 September 2025
[Scheduled] Planned Maintenance
We will be performing planned maintenance from approximately 10:30 PM to 11:30 PM ET today (September 17th).
Resolved Ended: 10:20 EDT - 16 September 2025
Microsoft Deliverability Issues (Outlook, Hotmail)
We are experiencing Broadcast email deliverability issues for Microsoft domains such as Outlook and Hotmail. Office 365 emails are delivering as expected. En...
Resolved Ended: 14:00 EDT - 11 September 2025
SMTP Authentication Issues
Customers may experience SMTP Authentication issues with API keys generated on or after Saturday, September 6). Customers using older keys should not be impa...
Resolved Ended: 14:30 EDT - 6 September 2025
SMTP Connection Issues
On September 6, 2025 from approximately 11am-230pm EST, we experienced SMTP connections issues during planned database maintenance which resulted in intermit...
Resolved Ended: 13:26 EDT - 5 September 2025
Broadcast Sending Delays
Beginning at 9:20pm and until 12:44am EST we experienced sending delays for broadcast emails. The issue has since been identified and resolved by the enginee...