不太适用

Whoever takes any letter, postal card, or package out of any post office or any authorized depository for mail matter, or from any letter or mail carrier, or which has been in any post office or authorized depository, or in the custody of any letter or mail carrier, before it has been delivered to the person to whom it was directed, with design to obstruct the correspondence, or to pry into the business or secrets of another, or opens, secretes, embezzles, or destroys the same, shall be fined under this title or imprisoned not more than five years, or both. 以上文字的理解，应该是两个条件（1）out of post office or letter carrier's custody (红字部分）AND （2）before it has been delieved to the person. 那么，收到给别人的信件，满足第二条件，before it has been delivered to the person, 但是信件不在邮局或者邮递人员的控制下，所以，这一段文字，并不适用于楼主的情况。 ' target='_blank'>https://www.law.cornell.edu/uscode/text/18/1702

Whoever takes any letter, postal card, or package out of any post office or any authorized depository for mail matter, or from any letter or mail carrier, or which has been in any post office or authorized depository, or in the custody of any letter or mail carrier, before it has been delivered to the person to whom it was directed, with design to obstruct the correspondence, or to pry into the business or secrets of another, or opens, secretes, embezzles, or destroys the same, shall be fined under this title or imprisoned not more than five years, or both. 以上文字的理解，应该是两个条件（1）out of post office or letter carrier's custody (红字部分）AND （2）before it has been delieved to the person. 那么，收到给别人的信件，满足第二条件，before it has been delivered to the person, 但是信件不在邮局或者邮递人员的控制下，所以，这一段文字，并不适用于楼主的情况。