Fort Knox Senator Mailbox – Mailbox Big Box
Mailbox Big Box


(503) 339-3163 |

Fort Knox Senator Mailbox



The Fort Knox Senator Mailbox - named after a former Senator who had one of the popular Fortress mailboxes customized for his own residence.


The design saw Fort Knox take the popular Fortress and add an extra compartment below for small packages/newspapers.


The Senator has since gone onto becoming one of the top sellers in the Fort Knox Mailbox range. At a whopping 148 pounds, it weighs as much as some people!


If mail security is your number one priority when choosing a mailbox. Look no further than the famous Fort Knox Mailboxes - commonly described as a safe on the top of a post!


Our Fort Knox Senator mailbox has an anti-fishing measure with nearly 6 inches of metal extension shelf at the incoming mail slot so if someone were to try and put a “fishing line” down into the box to grab the mail, the mail would catch on the extension shelf, drop back down, and would not come out of the incoming mail slot.


Shop with confidence as Mailbox Big Box proudly offers the lowest prices available anywhere on all Fort Knox Mailboxes




  • 2 weeks of mail storage
  • Built with 148 pounds of steel
  • 2 high-security tubular keys
  • 7 pin tubular lock
  • High-security slam lock on the lower package door 
  • Hand welded 1/4" steel shell and 3/16" reinforced steel doors
  • Accepts small parcels
  • 3" outgoing mail compartment
  • Steel powder coated red mail flag
  • Powder coated inside and out for durability
  • Free address numbers for the front door




  • Can be installed in masonry applications, a breakaway post, and other post materials 
  • Pre-drilled for the Fort Knox Senator in-ground post 




  • 57" steel post - designed for an in-ground installation
  • Newspaper box will come pre-welded to your Fort Knox Mailbox post
  • The Senator is highly customizable with rear door access, premium grade locks, extra keys, mail trays and more. Use the chat window below to let us know what additional options you need. 







Non-customized order - Dispatches in 3 - 5 working days
Customized order - Dispatches in 7 - 10 working days