Unknown error: permanent error (521): 5.3.0
Hi everyone,
How do I remove the following Cloudflare Workers error message:
"Rejected reason: Upstream error, please check https://developers.cloudflare.com/email-routing/postmaster for possible reasons why. Bdu5l2V6jTrN"
See the attached screenshot image.
Regards,
Hal
DevCED Team
How do I remove the following Cloudflare Workers error message:
"Rejected reason: Upstream error, please check https://developers.cloudflare.com/email-routing/postmaster for possible reasons why. Bdu5l2V6jTrN"
See the attached screenshot image.
Regards,
Hal
DevCED Team
Reference page with postmaster information for professionals, as well as a known limitations section.
