What does green post contain?

Green post includes letters sent by the masses to party committees, governments and relevant departments at the city, county and township levels. Green mail refers to letters sent by the masses to party committees, governments and relevant departments at the city, county and township levels. Letters from the masses need only be marked in the upper right corner of the envelope, and stamps are not required. Letters sent to party committees, governments and relevant departments at or above the provincial level shall still be paid by the sender. The postal department sends such letters to the window and mailbox (tube) and sends them to the receiving unit according to the normal delivery frequency. The funds needed for people to send letters to Green Post shall be solved by the finance at the same level. Governments at all levels should provide necessary financial, material and human support for Green Post.