On Sat, Sep 13, 2025 at 1:23 AM [off-list ref] wrote:

I cannot answer decisively. The functionality was first used in this customer about
four years ago. I do not think any changes were required in git to accomplish this.
It is possible GitHub had to have an enhancement but only they can answer that.

Appreciate you sharing what you know, Randall. My intention behind the
original question was not to suggest adding validation for email
legitimacy, but rather to inquire about and understand the rationale
behind the initial design decision to forgo strict validation when the
user identity feature (user.email) was implemented.

I will try to find answers from other sources of information.

Thank you again for your help.