How Certified Mail Works With PO Boxes
Certified Mail is used because the items being mailed need to be trackable and the sender wants to ensure they are delivered.
The Difference Between Certified Mail & Registered Mail
When standing at the Post Office, you might be overwhelmed with the different types and ways you can send mail. Two types of mail service provided by the Post Office that some may confuse are Certified Mail and Registered Mail.
How to Send Certified Mail Online
Traditionally Certified Mail is sent in the Post Office by filling out a Green Card and waiting in line. However, thanks to technology there are companies, such as Switch, that allow you to send Certified Mail online.