The official website is — usps.com. If you receive a message titled "Postal Service of the USA" from an unknown number, it may be a scam. Excessive characters, dashes, and periods in the link indicate danger.

This information was shared by the company.

"If you receive such a message — do not click on the link or engage with it. Do not enter your personal information or share it with others," warns the USPS.

"Please take care of your information security and alert your loved ones," the company added.