The CWU union members demand the reinstatement of David Mitchell, who was sacked in 2014 after bosses accused him of stealing mail.
An employment tribunal found there was insufficient evidence and ordered his reinstatement.
But bosses refused, saying they would not “under any circumstances” give David his job back.
David has strong support from his workmates and the public.
Strikers presented him with a collection of £1,200. Residents added to the collection on the picket line.
Donations to Brian Philbin, CWU Area Rep, David Mitchell Fund, Union Room, Royal Mail Dunfermline Delivery Office, Woodmill Rd, Dunfermline, Fife