Testing email logic usually requires sending real emails to your own inbox or configuring external credentials just to verify a workflow.
I built n8n-nodes-flowengine to solve this locally.
It is a standalone email tester that validates your data mapping (To, Subject, Body) without actually routing the email.
What it does:
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Simulates sending: Acts exactly like a standard email node, but traps the output.
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Standalone: No SMTP configuration or API keys required.
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Safe: Allows you to test logic loops and dynamic data without accidentally emailing real contacts
Install n8n-nodes-flowengine