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DuoCircle vs.

DuoCircle vs. Mimecast

How DuoCircle's Spam Filtering and Phishing Protection products compare to Mimecast for email security and continuity. Roughly 90% of category-leader capability at half the cost. Honest about where Mimecast covers more.

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DuoCircle vs. Mimecast

Mimecast is one of the major enterprise email security and continuity vendors. Like Proofpoint, they sell a broad suite (security, archiving, continuity, awareness) with enterprise-tier pricing and an enterprise-tier procurement experience. The capabilities are deep. So is the contract.

DuoCircle covers the practical core (anti-spam plus anti-phishing) at roughly half the cost, with engineering-led support and pricing on the product site instead of behind a quote.

This page is the honest comparison.

What DuoCircle covers

  • Spam Filtering for Microsoft 365, Exchange, and on-premise mail. Multi-layer scoring, tunable false-positive controls, self-service quarantine release.
  • Phishing Protection with click-time URL inspection, ransomware blocking, and impersonation defense.
  • DMARC Reporting and SPF Management as the authentication side of email security.
  • Backup MX for inbound continuity during primary-server outages.

What DuoCircle does not cover at full Mimecast scope: long-term regulatory archiving, full information-protection / DLP suite, end-user security awareness training programs, encrypted-mail products at full scope.

What Mimecast covers that DuoCircle doesn’t

  • Long-term regulatory email archiving with retention, hold, and eDiscovery at compliance-suite scope. (DuoCircle’s Message Replay is a 45-day operational recovery layer, not a regulatory archive.)
  • Full email continuity including outbound continuity during a multi-day primary-server outage. DuoCircle’s Backup MX queues inbound; Mimecast’s continuity covers more of the workforce-keep-working scenario.
  • Awareness training and phishing simulation as a built-in product.
  • Vendor-tier procurement for enterprises that explicitly need it.

Pricing comparison

  • Mimecast pricing is enterprise-tier, gated behind a sales conversation. Expect quotes in the multi-thousand-per-month range for mid-market deployments.
  • DuoCircle pricing is on the product sites. Spam Filtering and Phishing Protection together typically run roughly half what Mimecast charges for an equivalent security-only scope.

→ Visit phishprotection.com for current pricing.

When to choose Mimecast

  • You need the full security-plus-archiving-plus-continuity-plus-awareness suite, not just the security layer
  • You’re an enterprise with budget and procurement structure for tier-one email security
  • Long-term regulatory archiving is a binding requirement and you want it integrated with your email security stack

When to choose DuoCircle

  • You want strong anti-spam and anti-phishing on Microsoft 365 or Exchange without the full Mimecast bundle
  • You’re mid-market or upper-SMB and the Mimecast quote is not realistic for your budget
  • You’d rather get pricing off a product site and start a conversation with an engineer than navigate enterprise procurement
  • Your archiving needs are operational (45-day recovery) rather than long-term regulatory

When to look elsewhere from both

  • If you’re on Google Workspace, our Spam Filtering and Phishing Protection are not the right fit. Google’s built-in protection on Workspace is genuinely strong; we don’t think we add enough on top to justify the spend.
  • If you need long-term regulatory email archiving as a hard requirement, neither DuoCircle’s operational recovery nor Mimecast’s archive bundle is a substitute for purpose-built compliance archives. Look at the dedicated archiving vendors.

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