No you can not. The mailbox is for use of official mail that has gone through a post office only. I know of some instances that a mail carrier will not take mail from a box to be mailed if it does not have the name and address of the box owner on it. Meaning that you could not put your outgoing mail in someone elses box to be picked up.
US postal regulations state nothing but US mail can be put into a mailbox
No, it is illegal to put something in someone's mailbox without their permission as it is considered tampering with mail, which is a federal offense.
Yes, you can put mail or packages in a mailbox for delivery by the postal service.
No, it is illegal to put mail in someone else's mailbox unless you are a postal worker or have permission from the mailbox owner.
To properly put mail in a mailbox, place the mail with the address facing outward and the stamp in the top right corner. Close the mailbox securely after inserting the mail.
No, you can only put mail in mailboxes that belong to the postal service or have permission to receive mail.
no it is illegal t open someone else's mailbox
From: USPS Residential Mailbox Regulations 3.1.3 Use for Mail Except under 3.2.11, Newspaper Receptacle, the receptacles described in 3.1.1 may be used only for matter bearing postage. Other than as permitted by 3.2.10, Delivery of Unstamped Newspapers, or 3.2.11, no part of a mail receptacle may be used to deliver any matter not bearing postage, including items or matter placed upon, supported by, attached to, hung from, or inserted into a mail receptacle. Any mailable matter not bearing postage and found as described above is subject to the same postage as would be paid if it were carried by mail
No, it is illegal to put something in someone's mailbox without their permission, as it is considered tampering with the mail.
If I understand the question correctly, yes. You are not allowed to open a mailbox and put anything in it though. A better way is to put the flyer in a screen door handle and the front door crevice
Put it back in the mailbox and send it.
Yes, as long as it isn't stolen mail. No, it is illegal, even to place a flyer on the flag. The mailbox is US Government property.