Skip to main content
DuoCircle vs.

Phishing Protection + Spam Filtering
vs. Mimecast

DuoCircle and Mimecast both provide email security, but at different scopes and prices. DuoCircle covers spam filtering, phishing protection, DMARC reporting, SPF management, and Backup MX at roughly half Mimecast's cost, with published pricing. Mimecast adds long-term regulatory archiving, fuller continuity, and built-in awareness training in an enterprise-tier suite gated behind sales quotes.

Talk to an Expert →
Coverage match
~80%
Price ratio
~50%
Phishing Protection + Spam Filtering pricing
Per-mailbox, published
Pricing on the website. No quote-only gating.
Mimecast pricing
Bundle, quote-only
Verify against their current public posture.
Capability comparison

Phishing Protection + Spam Filtering vs. Mimecast, by capability

Honest table. Where the leader covers more, we say so.

Capability
Phishing Protection + Spam Filtering
DuoCircle
Mimecast
category leader
Anti-phishing + anti-spam core
Click-time URL inspection
BEC + impersonation defense
Multi-day email continuity
Full email archiving
Awareness training
Microsoft 365 + Exchange
Engineer on the support call
partial
Pricing on the website

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.

Talk to an Expert about your email security setup. Same-day response, real expert on the call.

Ready to talk?

Same-day response from someone technical. We tell you yes or no quickly. If yes, we get to work.

Talk to an Expert→See what we make