[sendgrid] How to set return address in email?

Question

Django

Hello everyone!)
I am setting up mailing lists via the sendgrid service in a django project. I set up according to the instructions from the office. site .
Settings:

# settings.py
EMAIL_HOST = 'smtp.sendgrid.net'
EMAIL_HOST_USER = 'sendgrid_username'
EMAIL_HOST_PASSWORD = 'sendgrid_password'
EMAIL_PORT = 587
EMAIL_USE_TLS = True

Sending occurs using the send_mail() function:

send_mail('Subject here', 'Here is the message.', email_отправителя, [user.email])

sender_email is registered in the Address Whitelist.
As a result, letters arrive, but end up in spam with an explanation:

The sender has been verified. However, the email came from the sendgrid.net domain, which does not match the return address.
Sender: sendgrid.net
Signature: sendgrid.net
Encryption: yes
Spam: yes

Please tell me how to treat it, where to add the address.

Answer 1

You go to your Sendgrid personal account and go to the Settings -> Sender Authentication -> Domain Authentication section.
Then follow the prompts step by step.
And you will be happy)