A Postal Inspector may open it or call the appropiate Federal Enforcement Agency.
Added: Please further define your interpretation of "suspicious."
But as a general answer, yes, they may if they believe it contains, explosives, unmarked firearms, liquor, or any other contraband which is forbidden to be sent through the US Mail.
yes
The Royal Mail Service is a postal service in the United Kingdom. The Royal Mail Service was established in the year 1516.
Yes the United States Postal Service does deliver overnight mail to most locations at an extra cost to consumers wanting to use this service. The United States Postal Service has competitors for this type of service.
The British postal service is called The Royal Mail.
Snail Mail.
Your answer depends on the service provider who supplies postal service to the location from which you want to send mail. Each research station employs a mail service provider who will dictate postal rates, that vary depending on the destination of the mail.
yes
Yes, "postal" can be a noun that refers to a postal service or the system of sending and delivering mail.
Postal Service
To find out if mail is being delivered today, you can check with your local postal service or view their holiday schedule on their website. Delivery of mail may be affected by holidays and postal service hours.
Express Mail
EMS stands for Express Mail Services. It is an international postal Express Mail Service, for documents and merchandise, offered by postal operators of the Universal Postal Union (UPU).