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Cybersecurity · head to head

Mimecast vs Resolver

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Rated
-
Full reviewWebsite
Resolver logo

Resolver

Cybersecurity

Risk, incident and investigations platform for corporate security and operational risk teams, owned by Kroll

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Mimecast no pricing is published for any product or plan, and every route ends at a quote or demo request; Resolver kroll ownership since 2022 means the product is sold alongside risk consulting services, so buyers who want software with no services attach should expect that conversation and should price the licence separately in negotiation.
  • They diverge on capability: Mimecast covers Advanced threat detection, Resolver covers Incident management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mimecast and Resolver actually diverge.

Attributes where Mimecast and Resolver differ
AttributeMimecastResolver
Starting price$4/monthOn request
Pricing modelsubscriptionquote
PlatformsEmail, Cloud, CollaborationWeb, iOS, Android
Founded2003Unknown

Identical on both: free tier (No), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Mimecast

  • Advanced threat detection
  • Secure sharing
  • Email encryption
  • Message tracking
  • Email archiving
  • Legal hold
  • eDiscovery
  • Backup and recovery

Only in Resolver

  • Incident management
  • Investigations
  • Enterprise risk management
  • Internal audit
  • Compliance and obligations
  • Business continuity
  • Risk Event Management
  • Configurable dashboards

What people use each for

The jobs each tool is most often brought in to do.

Mimecast

  • Email security filtering against phishing and targeted attacksnot Resolver
  • Email archiving, continuity and compliance for organisationsnot Resolver

Resolver

  • A national retailer consolidating store incident reporting, loss prevention cases and investigations into one system with defensible evidence handlingnot Mimecast
  • A bank that needs operational risk events captured against a risk and control register rather than in spreadsheets and emailnot Mimecast
  • A university security operations centre running dispatch, case management and clery-style reporting from a single recordnot Mimecast
  • An organisation that already retains Kroll for investigations and wants case intake and vendor handoff in the same platformnot Mimecast

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mimecast

  • No pricing is published for any product or plan, and every route ends at a quote or demo request
  • The platform is split into separately sold products for email security, awareness training, data protection and governance
  • Collaboration threat protection, DMARC analysis, incident response and email archiving are all further add ons on top of those

Resolver

  • Kroll ownership since 2022 means the product is sold alongside risk consulting services, so buyers who want software with no services attach should expect that conversation and should price the licence separately in negotiation.
  • Configuration flexibility comes at the cost of implementation time, with deployments commonly running several months and typically requiring vendor or partner services, so the first-year cost is well above the annual licence.
  • Module-based pricing means the platform gets expensive quickly once you add audit, compliance and continuity to a security-led purchase, and modules bought later rarely carry the discount of the original deal.
  • The IT and cyber compliance side is thinner than dedicated tools, so organisations chasing SOC 2 or ISO 27001 evidence automation will find it does not replace a Drata or Vanta.
  • Reporting is capable but the drag and drop builder has a real learning curve, and organisations that do not train an internal administrator end up raising support tickets for changes that should be self-service.

Pricing, plan by plan

Mimecast

$4/month
  • Defender$4/month
    • Per user
    • Threat protection
    • Impersonation prevention
  • Archive$3/month
    • Email archiving
    • Legal hold
    • Search & recall
  • Unified$6/month
    • All Defender features
    • All Archive features
    • Backup

Resolver

On request
  • Resolver Core$undefined/year
    • Priced by modules selected and number of users
    • Annual or multi-year enterprise agreement
    • Implementation and configuration quoted separately

Which should you pick?

Choose Mimecast if

  • You need advanced threat detection.
  • You work on Email, Cloud, Collaboration.
  • You also want secure sharing.
Mimecast review

Choose Resolver if

  • You need incident management.
  • You work on Web, iOS, Android.
  • You also want investigations.
Resolver review

Questions people ask

Is Mimecast or Resolver better?
Neither clearly leads. Mimecast starts at $4/month and Resolver at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or Resolver?
Mimecast starts at $4/month and Resolver at On request.
Does Mimecast or Resolver run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. Resolver runs on Web, iOS, Android.
What is Mimecast best used for?
Mimecast is most often used for email security filtering against phishing and targeted attacks, email archiving, continuity and compliance for organisations. Of those, email security filtering against phishing and targeted attacks and email archiving, continuity and compliance for organisations are not what Resolver is typically brought in for.
What can Mimecast do that Resolver cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Resolver covers Incident management, Investigations, Enterprise risk management, Internal audit.

Answered from the vendors’ own pages

Mimecast: How much does Mimecast cost?

Mimecast does not publish pricing on its website. Customers must request a custom quote by contacting the sales team at +1 617 393 7000 or using the Get a Quote button.

Source
Resolver: Who owns Resolver?

Kroll, which acquired it in 2022. It is marketed as a Kroll business and sold alongside Kroll risk and investigations services.

Mimecast: Is there a free trial of Mimecast?

Mimecast's trial and pricing options are not specified on the public website. Contact sales at +1 617 393 7000 or through their support portal at mimecastsupport.zendesk.com for trial availability.

Source
Resolver: What does Resolver cost?

Pricing is not published. It is quoted by module and user count on an annual or multi-year enterprise agreement, with implementation charged separately.

Resolver: Is Resolver a SOC 2 compliance tool?

No. It is a risk, incident and investigations platform. Automated evidence collection for security certifications is not its strength.

Resolver: How long does implementation take?

Months rather than weeks for a multi-module deployment, and most customers use vendor or partner services to configure it.

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