Answer:
False
Step-by-step explanation:
" A generation ago, no one even considered adding a postscript, or P.S., to a business letter. In business correspondence, if the writer thought to add something else, he would go back and add it into the body of the letter, rewriting as necessary. Today, a P.S. is often purposely added to business letters, and the use of a P.S. in formal emails and direct mail adds a personal touch or calls attention to an idea and prompts the reader to take action.
Follow a Format for a P.S. in a Letter
A P.S. always goes at the end of the letter, after the closing, signature and title of the letter writer and the name of the company (unless the letter will be printed on letterhead)."
Taken from BusinessInsider.com