It seems that for users only lower case email addresses are allowed, which is not intuitive as email addresses are (according to RFC) case sensitive and in practice used case-insensitive. For memberships, upper case characters are allowed.
So I propose to allow upper case characters for users' email addresses too.
It seems that for users only lower case email addresses are allowed, which is not intuitive as email addresses are (according to RFC) case sensitive and in practice used case-insensitive. For memberships, upper case characters are allowed.
So I propose to allow upper case characters for users' email addresses too.