Campaigns Not Using Outbound Email SMTP

I’ve set up Sendgrid’s SMTP in Outbound Email and also under Email Settings and I’ve tested both of these and they work and when I check in my inbox, the tests do indeed come from Sendgrid. However, when I create Campaigns and send the test email or send a live campaign, it is sending from my server and not the SMTP (sendgrid) configured in Outbound Emails and Email Settings.

Please help!