Errors with Email Sending via the Worker Binding

Resolved

This incident has been resolved.

Update

A fix has been implemented and we are monitoring the results.

Update

The issue has been identified and a fix is being implemented.

Investigating

We are continuing to investigate this issue.

Investigating

Cloudflare is investigating issues with Email Sending via the Worker Binding where an error message "Invalid email address: Invalid input" can be returned if the recipient list is an array.

More updates to follow soon.