[Django]-Setting up SendGrid using Django – User input "from_email"

You need to get your ‘from email’ validated. You can find the documentation on sendgrid it self.

You can create a sender identity by doing a POST request on https://api.sendgrid.com/v3/senders using your API key. You can find more details on sender apis here:

https://sendgrid.com/docs/API_Reference/Web_API_v3/Marketing_Campaigns/sender_identities.html