Below you can find the This privilege allows members of congress to send out official mail without paying postage Jeopardy Words Answer. The answer to This privilege allows members of congress to send out official mail without paying postage has 8 letters. This clue belongs to the Please mr. postman category and is part of Jeopardy Word Level 1138. If you scroll near the bottom you will find other clues and answers part of level 1138