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  • Fictitious, unfamiliar or no return address
  • Hand written or poorly typed address
  • Address to a title only or an incorrect title
  • Mailed from a foreign country
  • Excessive postage
  • Excessive string or tape on package
  • Misspelling of common words
  • Restrictive markings such as "Confidential," "Personal," etc.
  • Excessive weight and/or feel of a powdery or foreign substance
  • Discoloration or stains     

5.5.1Responses to receiving suspicious letters or packages

  • Stay calm
  • Contact SUPD at (617)573-8111 or (617)573-8333. They will contact Boston Police, Boston Fire Department, OEHS, and Facilities
  • If the package is opened or leaking, seal the room (close windows and lock the doors) and remain in the room until otherwise directed
  • If you open a letter or package that may have contaminated you or there is some sort of foreign substance in the envelope or package, place the letter back into the envelope/package and close it back up. Call SUPD to report the letter and tell the dispatcher you have opened the envelope/package, there is a substance inside, and what you have done up to that point
  • If the package is unopened, seal, and leave the room and await direction from the proper authorities
  • In buildings with centrally controlled HVAC, Facilities will shut off the air supply and return fans to the affected area(s)