Webhook not work on n8n

I have use cf7 web hook to connect n8n.

The same functions is work when I use zapier. But won’t work when I change to n8n.
But I have tested the webhook to n8n thought postman, and it’s work.

Error Message: There was an error trying to send your message. Please try again later.
Status: mail_failed

(I don’t want to send any email after submit, and I also disable all the send email setting, but still have this error)

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