I am attempting to modify the username of the confirmation e-mail for the Customer Portal that I have setup. I have created a custom login and am populating the @something.com portion of the username behind the scenes of the login page. This makes the firstname.lastname@example.org portion of the confirmation e-mail unwanted and I just want to display a different field or modify the existing field. I have added a disclaimer that states to ignore the @something.com portion of the email but would rather remove it.
the stackexchange post below was posted a while ago and I have not seen if there were any updates since then so I thought I would ask if anyone else has seen something:
Thanks for any tips or direction on where to head at this point.