You will have to leave outgoing mail in the designated slot next to the mailboxes. For those who live in a house, there is a separate mailbox for each house, mostly unlocked. You put outgoing mail in the same mailbox in which you receive mail.

What do you do with outgoing mail?

Should You Send Outgoing Mail from Your Mailbox? Briefly, no. If you are sending checks, bill payments, or anything with sensitive information that can be used for identity theft, we always recommend bringing it to a blue USPS collection mailbox or directly to the post office.

Can I leave outgoing mail in my mailbox?

You can send mail by: Dropping it into a blue collection box. Leaving it in your home mailbox. ... Taking it to a Post Office.