FALMOUTH — The School Board unanimously approved revised computer-use policies for staff members on Tuesday night that ban using the district’s email system for political or religious purposes, among other things.

The board updated the nine-year-old policies after Karen Boffa and John Flaherty, principals of Falmouth Elementary School, sent emails endorsing “school-friendly” candidates in recent local elections.

The board also unanimously approved a revised policy for public participation in board meetings. All school policies are posted on the district’s website, falmouthschools.org.