You can set up Email settings for the contact page from the Stores Configuration section.
Go To Admin Panel, log in with your credentials,
- Stores -> Configuration
- Now Click on General Tab,
- Contacts -> Email Options
- Set Send Emails To Field as your email id to receive mail. (Example, To firstname.lastname@example.org)
- Email Sender Field used to set From part of Mail. (Example, From Rakesh Jesadiya <email@example.com>)
- Email Template Field is used to set your custom email template for Contact Us mail. (By Default, the Contact Form (Default) email template is used.)
- Click on Save Config Button at the top right.
Clear the Cache and fill up the form and check the mail template.