<rsbecker@xxxxxxxxxxxxx> writes: > Some customers integrate single sign-on (SSO) via the user.email value. In the case > of one customer I helped, the value is an SSO token used by GitHub for their > integration. The token value does not conform to any valid email address format. > Adding an email validation will lock them out of using git. That is a very good point. We need to remember that not all users use the value of the field we define to be "email" to send emails to, just like some people use "name" field to store something that is not their name.