Troubleshooting
Fix common Resend issues like unverified from addresses, invalid API keys, and webhook problems.
Use this page when emails don’t send through Resend, or a Send Email flow node shows a Resend-related error in the flow logs.
Where to check errors
Open the related booking/consultation/payment/consent form → Flow Logs to see the exact email-node error message and provider used.
Quick Checks (Most Common)
- Is Resend installed and active? Extensions → Resend Email
- Is it configured? Resend Email → Settings
- From email
- API key
- Is Resend selected as the organization email provider? Settings → Communication
- Is the from email verified in Resend?
- Does the recipient have an email address?
Common Errors And Fixes
Related
Setup
Install Resend Email, configure from address and API key, and send a test email.
Recheck from email, API key, provider selection, and test sending.
Using Email In Flows
Send automated emails with the Send Email flow node and the selected organization email provider.
Review recipient and provider behavior in flow email nodes.
Webhooks & Delivery Status
Use Resend webhooks to record delivery and bounce information for emails sent by TatTool.
Configure delivery and bounce event tracking.