Trying to set up SMTP (Using Brevo)

[SeaswimmerTheFsh]

I've verified my domain ownership through Brevo and set up a sender (see image below), and my configured settings all match what Brevo gave me, but I'm getting an "Invalid Username or Password" error in Gogs whenever I try to send a test email.
This is my first time using SMTP, help would be very appreciated!
Edit: Yes, my password is missing from both screenshots, but it matches what Brevo gives me. Does it need to be wrapped in ``?

Edit: I'm no longer using Gogs (I've switched to Gitea), but if you'd still like to answer this question for whatever reason, I'll leave this discussion open.