ALERT: Sandboxx and Base Mailroom Closures October 2025

Upcoming Sandboxx and Columbus (Indigenous Peoples’) Printing Schedule Please review the following timeline for information regarding the upcoming Sandboxx Team Event and Columbus Day mailroom...

Upcoming Sandboxx and Columbus (Indigenous Peoples’) Printing Schedule

Please review the following timeline for information regarding the upcoming Sandboxx Team Event and Columbus Day mailroom closures.

  • Tuesday, 10/7: Sandboxx Mailroom Open. Have all letters submitted prior to 5pm ET, Tuesday 10/7 for standard processing delivery and to avoid upcoming mailroom closures for Columbus Day.
  • Wednesday, 10/8-Sunday, 10/12: Sandboxx Mailroom Closed for Annual Team Event. Letters submitted will be processed on Monday, 10/13 for delivery after Columbus Day Holiday depending on Training Base (View Base schedules below).
  • Monday, 10/13: Sandboxx Mailroom Open. Letters will be processed and shipped for Tuesday, 10/14 delivery (except for MCRD San Diego, which will be scheduled for Wednesday, 10/15 delivery).

For specific Branch / Base mailroom closures and timing, please continue reading below.

Please keep in mind, the dates below are subject to change depending on the needs of the Command. If you have any questions or concerns, please reach out to our Customer Happiness team

Army Base Mailroom Closures

All mail submitted for Army bases after 5 pm ET on Tuesday, 10/7, will be delivered on Tuesday, 10/14.

BASEDATEMAILROOM STATUS
Fort BenningFriday 10/10 & Monday 10/13Closed
Fort JacksonFriday 10/10 & Monday 10/13Closed
Fort Leonard WoodFriday 10/10 & Monday 10/13Closed
Fort SillFriday 10/10 & Monday 10/13Closed

Marine Corps Base Mailroom Closures

All mail submitted for San Diego after 5 pm ET on Tuesday, 10/7, will be delivered on Wednesday, 10/15.

All mail submitted for Parris Island after 5 pm ET on Tuesday, 10/7, will be delivered on Tuesday, 10/14.

All mail submitted for Quantico after 5 pm ET on Tuesday, 10/7, will be delivered on Tuesday, 10/14.

BASEDATEMAILROOM STATUS
MCRD San Diego
Monday 10/13 & Tuesday 10/14
Closed
MCRD Parris IslandMonday 10/13Closed
QuanticoMonday 10/13Closed

Air Force Base Mailroom Closures

All mail submitted for Lackland AFB after 5 pm ET on Tuesday, 10/7, will be delivered on Tuesday, 10/14.

BASEDATEMAILROOM STATUS
JBSA LacklandMonday 10/13Closed

Navy Base Mailroom Closures

All mail submitted for RTC Great Lakes after 5pm ET on Tuesday, 10/7 will be delivered on Tuesday, 10/14.

BASEDATEMAILROOM STATUS
RTC Great LakesMonday 10/13Closed

Coast Guard Base Mailroom Closures

All mail submitted for Cape May after 5pm ET on Tuesday, 10/7 will be delivered on Tuesday, 10/14.

BASEDATEMAILROOM STATUS
Cape MayMonday 10/13Closed

Please keep in mind, the dates below are subject to change depending on the needs of the Command. If you have any questions or concerns, please reach out to our Customer Happiness team. 

Popular Posts
Something went wrong. It seems like the playlist you selected does not have any videos
Jeremiah Runser