Error Guide
This error can be thrown due to several reasons:
When utilized, the bcc array must include at least an email parameter with a valid email address, as well as a name parameter."email": "example@example.com" or "email": "example@example.com", "name": "Sample Recipient" or "email": "example@example.com", "name": "Sample Recipient".
Each receiver object must include an email address and can additionally include a name. "email": "example@example.com" or "email": "example@example.com", "name": "Example Recipient".
In the personalization block, each unique email address should only be used once.
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