Email or Username: A.J.Caines+Lemmy@example.com Password: *password123*Incorrect login credentials
but
Email or Username: a.j.caines+lemmy@example.com Password: *password123*Logged in
While the forty-year-old standard for email specifies the left hand side of the
@ as case sensitive, the de facto standard is to treat email addresses as case insensitive - preferably with normalisation handled outside the user interface (by lowering (unless you are Oracle)).