Canada Post workers have been on strike since November 15, resulting in halted operations across the country due to failed contract negotiations with the Canadian Union of Postal Workers, which represents over 55,000 employees. The union seeks pay raises, safer working conditions, and expanded services. As shippers divert their packages to other carriers during the busy holiday season, delivery networks are strained, leading to significant delays. The impact of the strike is expected to linger even after it ends, with estimates indicating small- and medium-sized businesses may face over $1 billion in losses.

Source: https://www.supplychaindive.com/news/canada-post-strike-delivery-alternatives-guide/734952/