Mail uon

I think you meant "mail union"!

A mail union is a labor union that represents postal workers, including mail carriers, postal clerks, and other employees of postal services. The main goal of a mail union is to protect the rights and interests of its members, negotiate better wages and working conditions, and advocate for the improvement of postal services.

Some examples of mail unions include:

1. The National Association of Letter Carriers (NALC) in the United States
2. The Canadian Union of Postal Workers (CUPW) in Canada
3. The Communication Workers Union (CWU) in the United Kingdom
4. The Australian Postal Workers Union (APWU) in Australia

Mail unions often work closely with postal services to resolve issues related to job security, benefits, and working conditions. They may also engage in collective bargaining, strikes, and other forms of industrial action to achieve their goals.