Solicitation 2026-001-049- Managed Email Security Solution RFP

The Housing Authority of the Cherokee Nation is seeking a managed email security solution that integrates tightly with its Microsoft 365/E5 environment and provides 24×7 managed detection and response (MDR) services. The vendor must deliver advanced threat detection, automated remediation, comprehensive reporting, and full implementation support for roughly 270 users across 23 locations. Preference is given to vendors with Cherokee Nation Tribal Employment Rights Office (TERO) certification and proven experience in similar tribal‑government or public‑sector environments. • Scope includes phishing, BEC, malware, URL, attachment, and identity‑compromise protection for inbound/outbound email. • Required integration with Microsoft 365, Exchange Online, Entra ID, and Defender via Microsoft Graph API; optional integration with existing security tools. • Mandatory 24×7 SOC monitoring, threat hunting, incident response playbooks, and real‑time dashboards plus executive reporting. • Vendors must submit a mandatory response sheet, pricing (per‑user licensing, managed services, implementation), and references; the award will be based on best value and compliance with non‑appropriation termination clause.