Live Site: Custom Mailable not sending email however Default Mail (Breeze's Reset,Verification) are being sent.

I've a site that I just uploaded on shared hosting, made on laravel 10. And as the title says, the default emails with breeze are working but I've built a Mailable for form submissions which is not sending any email. I'm not getting any errors either... By Default, I mean Password::sendResetLink & sendEmailVerificationNotification()

Note: For offline XAMPP, I'm using the new mailpit for the Mailable so I know there's nothing wrong with the code. It's sending both Mailable emails and the default ones.

I'm guessing the problem is with Google's (Gsuite) settings... (but if that were the case then why are the default mails working?) Also, sometimes, even the default ones don't go through...

Is anyone else facing something similar?