MANILA, April 26 — The Philippine Postal Corporation (PHLPost) is advising the public to start using the correct zip code, observe correct addressing of mail items and use 80 gsm (grams per square meter) mailing envelope. In line with the Corporate thrust of modernizing operational facilities to improve the sorting efficiency and enhance the quality of service, automatic sorting of letters thru the modern Letter Sorting Machine is currently being implemented at the PHLPost-Central Mail Exchange […]