Not CUI Compliant
1 NIST 800-171 gaps detected. No certified FedRAMP Marketplace record for Zimbra as of 2026-07-27 — searched the live registry at fedramp.gov/marketplace. Get any authorization or equivalency claim in writing from the vendor and assess it yourself under DFARS 252.204-7012(b)(2)(ii)(D).
Zimbra
by Synacor
FedRAMP Status
Not FedRAMP Authorized
Impact Level
N/A
Category
Overview
Zimbra holds no FedRAMP authorization we can source. There is no FedRAMP Marketplace record for Zimbra in the live registry at fedramp.gov/marketplace, read 2026-07-27. Treat any authorization or equivalency claim as something to obtain in writing from the vendor and to assess yourself under DFARS 252.204-7012(b)(2)(ii)(D).
CUI Risk Assessment
No certified FedRAMP Marketplace record for Zimbra as of 2026-07-27 — searched the live registry at fedramp.gov/marketplace. Get any authorization or equivalency claim in writing from the vendor and assess it yourself under DFARS 252.204-7012(b)(2)(ii)(D).
Deployment & Architecture
Deployment Model: On-premises (customer-hosted)
Zimbra has no FedRAMP authorization on record. DFARS 252.204-7012(b)(2)(ii)(D) requires an external cloud service provider to meet security requirements equivalent to the FedRAMP Moderate baseline — an authorization is the straightforward way to show that, but it is not the only one. Without one, the burden is on you to establish, document, and defend equivalency, and to meet the clause's incident-reporting and media-preservation obligations. Most contractors find an authorized alternative cheaper than carrying that burden.
Migration Checklist
- 1ISSO: Conduct risk assessment documenting Zimbra's non-FedRAMP status and required compensating controls (Week 1)
- 2Contracts team: Review existing contracts for email platform requirements and notify customers of planned migration (Week 2)
- 3ISSO: Update POAM with Zimbra as open finding, establish timeline for remediation (Week 2)
- 4Sysadmin: Implement enhanced logging and monitoring controls for current Zimbra environment (Week 3)
- 5ISSO: Research and select FedRAMP-authorized email alternative (Microsoft 365 GCC High/Google Workspace Gov) (Week 4)
- 6Sysadmin: Configure new email platform with appropriate NIST 800-171 controls and DLP policies (Weeks 6-8)
- 7ISSO: Execute migration plan including data transfer, user training, and SSP updates (Weeks 10-14)
- 8ISSO: Conduct post-migration security assessment and update authorization boundary documentation (Week 16)
NIST 800-171 Violations
Using Zimbra for CUI without FedRAMP authorization may violate these NIST 800-171 controls:
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FedRAMP Compliant Alternatives
Frequently Asked Questions
Is Zimbra FedRAMP authorized?
There is no FedRAMP Marketplace record for Zimbra in the live registry at fedramp.gov/marketplace, read 2026-07-27. Treat any authorization or equivalency claim as something to obtain in writing from the vendor and to assess yourself under DFARS 252.204-7012(b)(2)(ii)(D).
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