Further strike notice has been given by the Canadian Union of Postal Workers.
Unionized workers are holding rotating strikes in the Greater Toronto Area.
Canada Post says mail and parcels will not be delivered or picked up in Toronto, but because the City is also a key processing hub for mail and parcels in Canada, the strikes will have an impact on operations and other parts of the country may see some delays for parcels and mail delivery.
Canada Post says negotiations continue to try and reach a deal with postal workers.
