OTTAWA - Canada Post's plan to end home mail delivery would become a dead letter if the NDP were to win the federal election this fall.

The post office is in the second year of a controversial five-year plan to phase out door-to-door delivery for more than 5 million households.

Alexandre Boulerice, the NDP's post office critic, says a New Democrat government would terminate the phase-out plan and restore service to those households that have already lost their home mail delivery.

The announcement follows a decision earlier this week by some Montreal-area mayors to join a court challenge against the phase-out of home delivery.

The mayors argue the move is unconstitutional and are hoping to turn it into a federal election issue.

The court challenge is spearheaded by the Canadian Union of Postal Workers but several groups representing seniors and disabled Canadians have joined it.