DuoCircle partners with the Center for Internet Security (CIS) to help U.S. State, Local, Tribal, and Territorial (SLTT) agencies strengthen email security and meet DMARC enforcement requirements. Through CIS CyberMarket, eligible organizations can access self-service monitoring, expert-guided DMARC enforcement, and inbound email protection at discounted rates.
About DuoCircle
Since 2014, DuoCircle has protected over 50,000 email domains for organizations across government, healthcare, finance, and education. The DuoCircle email security platform is SOC 2 Type II certified and backed by a signed 99.99% uptime SLA, with 24/7 prioritized support for SLTT entities.
DuoCircle offers SLTT agencies three flexible paths to DMARC enforcement, depending on internal expertise and resource availability:
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Self-serve monitoring: Deploy DMARC Report to see who is sending email from your domains within 24 hours.
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AI-assisted analysis: Query your DMARC data in plain language to better understand sending sources and authentication issues.
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Expert-guided enforcement: DuoCircle's Done With You service provides hands-on support and guarantees DMARC enforcement (p=reject) within 90 days - or continued support at no additional cost.
DuoCircle is rated 4.8 out of 5 on G2, based on more than 475 verified reviews, and supports requirements outlined in CISA BOD 18-01, CIS Control 9.5 (Email and Web Browser Protections), and NIST SP 800-177.
DuoCircle previously served as the MS-ISAC's technology partner for Email Protection Service (EPS), which is now deprecated. Phish Protection provides an upgraded replacement path.
DuoCircle Solution Overview
DuoCircle provides DMARC enforcement tools, expert guidance, and inbound email protection available individually or as a bundle with exclusive pricing via CIS CyberMarket.
DMARC Report: Domain Authentication Monitoring
- Collects aggregate and forensic DMARC reports
- Identifies and classifies sending sources (Google, Microsoft, SendGrid, and 200+ others)
- Monitors SPF, DKIM, DMARC, MTA-STS, and TLS-RPT across all domains from one dashboard
- Includes parked domain protection
- Deploys in approximately five minutes with a single DNS TXT record
Done With You: Expert DMARC Enforcement
- Dedicated DMARC engineer provides hands-on guidance
- Safely transitions domains from p=none to p=reject
- 90-day enforcement guarantee
- Includes a one-year DMARC Report subscription
- Continued support at no extra cost if enforcement is not achieved within 90 days
Phish Protection: Inbound Email Security
- Sits in front of Office 365, Google Workspace, or on-premises Exchange
- Filters all inbound email before delivery
- Deploys in approximately 15 minutes via MX record update
- No agents, hardware, or software installation required
Why DuoCircle?
With a complete suite of email security solutions, DuoCircle helps U.S. State, Local, Tribal, and Territorial agencies like yours stop malicious emails before they harm your organization.
Compliance ReadySupports CISA BOD 18-01 and CIS Control 9.5. DMARC Report provides monitoring and audit evidence, while Done With You guarantees enforcement.
Easy to DeployDMARC Report starts collecting data with a single DNS record. Phish Protection goes live in 15 minutes with an MX record change. No hardware, agents, software, or complex installations — just DNS updates your team already knows how to make.
Expert SupportSLTT agencies receive 24/7 prioritized support or can receive guidance from an experienced DMARC engineer to help with enforcement through DuoCircle's Done With You service.
Trusted by Security TeamsSOC 2 Type II certified, 99.99% signed uptime SLA, 4.8/5 on G2 from 475+ reviews and 50,000+ domains protected.
Pricing and Contact Information
Eligible MS-ISAC® and EI-ISAC® members, U.S. SLTT governments, associated nonprofits , and public education and healthcare institutions can purchase email security solutions from DuoCircle at discounted rates through CIS CyberMarket®:
DMARC Report: Domain Authentication Monitoring
- Shield Plan (recommended for SLTTs)
- $30/month for up to 10 domains and 1 million monthly reports (60% off standard pricing)
- Includes aggregate and forensic reports, sender classification, SPF/DKIM/DMARC monitoring, SPF management, MTA-STS hosting, TLS-RPT, parked domain protection, email support, and alerts.
Done With You: Expert DMARC Enforcement
- $1,950 per domain (50% off standard pricing)
- Volume discounts available:
- 2 domains: 15% off
- 3 to 5 domains: 25% off
- 6+ domains: 35% off
- Includes dedicated DMARC engineer, 90-day enforcement guarantee, and 1-year DMARC Report subscription
- Any additional work required to reach DMARC enforcement past 90 days are provided at no extra cost
Phish Protection: Inbound Email Security
- Base Plan: $24/month (30% saving) for 10 users (minimum)
- Additional Users: $1.00 per user/month (60% savings)
- Includes 60-day free trial with comprehensive onboarding support
- Includes phishing, spam, malware, and impersonation filtering; quarantine management; and Office 365 and/or Google Workspace integration
All DuoCircle offerings include 24/7 prioritized support for MS-ISAC and EI-ISAC member accounts