How to add the mailing feature in the Flask Application?

Answer

To send emails, we need to install the Flask-Mail flask extension using the below-given command.

pip install Flask-Mail

Once installed, then we need to use Flask Config API to configure MAIL-SERVER, MAIL_PORT, MAIL_USERNAME, MAIL_PASSWORD, etc. Then we need to import Message Class, instantiate it and form a message object before sending the email by using the mail.send() method.