Setup client's Craft CMS site to use SendGrid for SMTP email sending

Go to the Google Admin console and create a group. I name the group like:

SendGrid: Client Name

And create the email address:

Then hit Create. Add any email addresses you want to receive mail to the group. Make sure the public can send message to the group using Posting Permissions: Public. Then send the invite from SendGrid.

When the invite arrives, I use 'clientname' as the first name, '' as the last name, then the above email address and set a password.

To setup sending with Craft CMS:

Protocol: SMTP
Host name:
Port: 2525