Regulation check

ELECTRONIC MAIL (EMAIL) USE POLICY reads like a Records & Information question — these are the publications that govern it in each branch:

PublicationBranchTitleDateStatus
AR 25-400-2ArmyARMY RECORDS MANAGEMENT PROGRAM2022-10-18Current
AFI 33-322Air ForceCommunication and Information Records Management and Information Governance Program2020-03-23Current
AR 600-8-104ArmyARMY MILITARY HUMAN RESOURCE RECORDS MANAGEMENT2023-06-29Current
DAFI 36-2608Air ForceMilitary Personnel Records Systems2026-03-02Current
BUPERSINST 1070.27ENavyDocument Submission Guidelines for the Electronic Military Personnel Records System2023-10-13Current
MILPERSMAN 1070-020NavyOfficer Official Military Personnel File (OMPF)—Current
BUMEDINST 5230.4NavyELECTRONIC MAIL (EMAIL) USE POLICY1989-08-28Rescinded / cancelled
439AWI21-104Air ForceElectronic Use Of Af Form 24072025-08-08Current
ARMY DIR 2020-12ArmyDEPARTMENT OF DEFENSE ENTERPRISE EMAIL TRUSTED AGENTS2020-10-14Current
AR 25-51ArmyOFFICIAL MAIL AND DISTRIBUTION MANAGEMENT2023-01-30Current
DA PAM 25-53ArmyOFFICIAL MAIL AND DISTRIBUTION PROCEDURES2025-12-04Current
Looking for an actual answer, not just the pub? Ask it as a question — free, and it quotes the regulation text where indexed.
Numbers match loosely — “ar670”, “AR 670-1”, and “670-1” all find the same pub. Every result shows its live status from the official catalog.