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Changelog

September 16, 2025
Adjusted

Free web services will no longer allow outbound traffic to SMTP ports

Starting next week, free Render web services will block outbound network traffic to SMTP ports 25, 465, and 587.

This change will be live across all regions by Friday, September 26th.

To continue sending traffic to an SMTP port, you can upgrade your free web service to any paid instance type.

Learn more about free service limitations in the documentation.