Task: Send an email

n8n workflow:
{"nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Send Email","type":"n8n-nodes-base.emailSend","position":[450,300],"parameters":{"text":"This is a message to demonstrate the n8n Send Email workflow!","options":{"allowUnauthorizedCerts":false},"subject":"n8n rocks!","toEmail":"user@example.com","fromEmail":"user@from.email"},"credentials":{"smtp":"your@smtp_creds.here"},"typeVersion":1}],"connections":{"On clicking 'execute'":{"main":[[{"node":"Send Email","type":"main","index":0}]]}}}