Cognito not sending verification email during sign up

Hello,

I have setup my user pool, and on "Sign up experience" tab, it says to "Allow cognito to automatically send messages to verify and confirm" and ive selected "send email message, verify email address".

In Messaging tab, it says "Send email with cognito" (not using SES yet).

When I sign up, i see users getting populated, it has a valid email address, but email verified is 'No', and im not getting any verification emails.

Am I missing something here?

Thank you