You will need to follow the below steps to register to SendGrid.
a) Open the URL: https://sendgrid.com/ . You may click on try for free to register and enter the company details to create the account

b)on sendgrid -> Under API Settings, click on create new API Key from Sendgrid.

API_key.png

c. enter the API name of your choice and click Create and View as shown below:

Screen_Shot_2021-03-08_at_5.40.42_PM.png

c) Copy the API key created from Sendgrid and login to PropSpace and update the API key in PropSpace under Marketing section in the Profile screen and validate.

Screen_Shot_2021-03-08_at_5.48.00_PM.png

d. Once validated, update Profile.

 For bulk email campaigns – you can refer to sendgrid pricing here – https://sendgrid.com/pricing