This service is intended for any person, business or organization who have changed their Israeli postal address. Letters sent to the old address can be forwarded to the new address.

People interested in this service must fill out a form at their regular post office branch.
All mail items sent to the old address will be forwarded to the new address.

Mail Forwarding is provided free for the first six months.
Additional six month periods can be ordered for a fee.

When requesting Mail Forwarding, the customer must identify himself/herself with his/her Israeli Identity Card.

A business that is a registered company must, when requesting Mail Forwarding, attach a letter from the company's lawyer or accountant that certifies the name of the company, the names of the company's officers with signing authority and their Israeli Identity Card numbers. Similar requirements apply to registered non profit organizations.
http://web01.postil.com/redirectmail.nsf/pages/about?opendocument