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Cybersecurity · head to head

Mimecast vs Rock Solid

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Free plan
No
Full reviewWebsite
Rock Solid logo

Rock Solid

Government

Parks and Recreation Management

From
$350/month
Free plan
No
Full reviewWebsite

The short version

  • They diverge on capability: Mimecast covers Advanced threat detection, Rock Solid covers Program Registration.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Mimecast and Rock Solid actually diverge.

Attributes where Mimecast and Rock Solid differ
AttributeMimecastRock Solid
Starting price$4/month$350/month
PlatformsEmail, Cloud, CollaborationWeb, Ios, Android
CategoryCybersecurityGovernment
Founded20032001

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated).

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 Rock Solid

  • Program Registration
  • Facility Scheduling
  • Membership Management
  • Payment Processing
  • Reporting & Analytics
  • Payment Gateways
  • QuickBooks
  • Marketing Tools

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 Rock Solid
  • Email archiving, continuity and compliance for organisationsnot Rock Solid

Rock Solid

  • Citizen Servicesnot Mimecast
  • Records Managementnot Mimecast
  • Public Safetynot Mimecast
  • Civic Engagementnot 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

Rock Solid

Nothing recorded yet. See the Rock Solid review.

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

Rock Solid

$350/month
  • Recreation Management$350/month
    • Program Registration
    • Facility Scheduling
    • Payment Processing

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 Rock Solid if

  • You need program registration.
  • You work on Web, Ios, Android.
  • You also want facility scheduling.
Rock Solid review

Questions people ask

Is Mimecast or Rock Solid better?
Neither clearly leads. Mimecast starts at $4/month and Rock Solid at $350/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or Rock Solid?
Mimecast starts at $4/month and Rock Solid at $350/month.
Does Mimecast or Rock Solid run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. Rock Solid 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 Rock Solid is typically brought in for.
What can Mimecast do that Rock Solid cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Rock Solid covers Program Registration, Facility Scheduling, Membership Management, Payment Processing.

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
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
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