How to get rid of bubble.io alias in password reset?

Hi all,

I am on a paid plan and created a custom domain. I have configured the sendgrid account so that when my users requests a password reset, he gets an email with a reset link from mycompany@mydomain.com. instead of the mybubbleappsname@bubbleapps.io. This is working with the excecption that the email’s Alias still shows the bubble.io info, see printscreen below. I can’t figure out for the life of me; how to get rid of that bubble.io mention. I have looked everywhere, in sendgrid, in my bubble settings, it is nowhere to be found. Anyone please help ?