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FSI-CSO-TFGMUSTAll frameworksImplementation guide coming soon

Trust @fedramp.gov and @gsa.gov

FedRAMP Security Inbox (FSI) · General Provider Responsibilities

Applies to: Providers
Who this applies to
Providers
Service class
All service classes
Force
MUST
Timeframe
No fixed timeframe

Reviewed implementation guidance for FSI-CSO-TFG is not published yet. The official source below remains complete and authoritative.

Official FedRAMP source

Verbatim from FedRAMP/rules

Providers MUST treat any email originating from an @fedramp.gov or @gsa.gov email address as if it was sent from FedRAMP by default; if such a message is confirmed to originate from someone other than FedRAMP then the FedRAMP Security Inbox rules no longer apply.

Defined terms in this requirement

FedRAMP Security InboxProvider

Change history

  • 2026-05-04Initial reset for the Consolidated Rules for 2026 Public Preview.

Content provenance

Official requirement text is sourced from FedRAMP/rules . Boundera implementation guidance has not been fully reviewed for this item.