Not able to integrate with sendgrid

Product Support Self-hosting
12

For the record, the docs make this pretty confusing and this is not the first time I have found myself googling this exact issue trying to find the solution.

Docs currently have:

SendGrid — 40k emails on a 30 day trial

SMTP server address? smtp.sendgrid.net
SMTP user name?      apikey
SMTP password?       [SendGrid API Key]

EDIT: What I think is confusing people is that they (like me) think apikey means put your apikey here but infact it should be left alone!