RE: How to send email to a lead once lead is created - CRM 365
Hi Biswad,
Please follow these steps.
1. Go to Advanced Settings > Processes, new. Select workflow and Lead.

2. In the workflow editor, select Scope to Organization. Add step "Send Email".

3. Click Set Propertie. Set the email as follow.

Please note that when you want to send an email to a contact or lead, the "To" field should be the contact or lead rather than its email address. (Only for D365 workflow, the "To" field in power automate is the email address)
4. Activate the workflow.
