MONTREAL -- NDP Leader Tom Mulcair met the mayor of Montreal today to repeat his party's election promise to reverse Canada Post's plan to phase out door-to-door mail delivery.

Speaking at a joint news conference with Denis Coderre, Mulcair reiterated his pledge to cancel the Crown corporation's move, which he said will affect five million households across the country.

Coderre made national headlines last month when he called Canada Post "arrogant" for installing a concrete base for community mailboxes outside a Montreal park without consulting the municipality.

The outspoken mayor, a former Liberal MP, was later seen on live TV using a jackhammer on the concrete.

With mail volumes shrinking in a digital age, Canada Post is ending door-to-door delivery across the country in a move expected to save the corporation about $500 million a year.

Mulcair also said he reminded Coderre that an NDP government would ensure the eventual replacement for Montreal's federally owned Champlain Bridge would be free of tolls.

The plan to rebuild the country's busiest bridge was first announced by the Conservative government in 2011.

Mulcair said he also told Coderre that an NDP government would provide $1.5 billion more per year in infrastructure funds for cities.