The term bulk mail refers to large quantities of mail prepared for mailing with a permit at reduced postage. United States Postal Service (USPS) regulations and size restrictions have changed over ...

The upgraded center is also projected to offer express services and accept bulk and permit mail. The improvements will allow ...

A USPS spokesperson said once the facility was transformed into a local processing facility, it was also projected to offer express services and accept bulk mail. "Letters go a long way.