About leak of e-mail address due to erroneous e-mail in Municipal Junior High School

Two teachers from Municipal Junior High School (Isogo Ward) attended a classroom instruction class. ※When sending an e-mail about a parent interview to the parents of the student attending, the e-mail address of the parental interview, the e-mail address of the other recipient cannot be determined (BCC) and sent at the same time. (TO "Destination") Parents who received this e-mail were contacted individually by telephone, gave explanations and apology, and sent an e-mail (BCC) requesting the deletion of the e-mail.
※The classroom instruction classroom is a place where children with mild disabilities enrolled in general classes at elementary and junior high schools receive special guidance according to their disabilities.