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Fix Remote Media Download Failures

Fix Postifys media download failures caused by private URLs, Drive sharing, or unsupported sources using proxyDownload guidance.

Reviewed: 2026-07-24

Answer: Make the media publicly fetchable or use proxyDownload/Drive Anyone-with-link sharing. Confirm the URL in a private browser window before retrying.

Media requirements

Technical reviewer: Postifys engineering (docs sourced from live API behavior). Contact info@postifys.com.