Theft of mail is a serious crime under federal statute, 18 U.S. Code § 1708.

Mail theft is a federal crime that can result in a fine of up to $250,000 and up to five years in prison. 

The law also applies to mail obtained fraudulently from mailboxes, post offices, or mail carriers.

If the theft of mail involves postal employees, an inside job, then the criminal crime is covered under statute 18 U.S. Code § Section 1709.

The penalty is a fine of up to $250,000 and up to five years in prison.

In addition, “federal prosecutors can charge multiple counts of mail theft, which can lead to higher offense levels and more severe consequences. 

For example, each electronic communication or mailing that is part of a fraudulent scheme can be charged as a separate count”.**

If the mail theft is used to further other crimes, such as fraud or identity theft, the sentence would be higher. 

If the resulting theft causes some sort of mail fraud then in accordance with statute 18 U.S.C. § 1341, the felony penalty is a fine as high as $1,000,000 and the imprisonment term can be up to 30 years for each count of mail fraud.

Additional fraud laws may apply depending upon severity, extent, and types of the fraud.

Note, each state has its own laws pertaining to mail theft and it varies from state to state and prosecutors can charge the thief on multiple counts based upon each instance of mail theft.

*https://www.findlaw.com/criminal/criminal-charges/mail-theft.html

**Google AI search “Can prosecutors charge mail theft on each count?”