Softwr

Cybersecurity · head to head

Mimecast vs OnBase

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Free plan
No
Full reviewWebsite
OnBase logo

OnBase

Government

Enterprise Information Platform

From
$400/month
Free plan
No
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; OnBase pricing starts at 2,000 USD per month, making it expensive for small agencies
  • They diverge on capability: Mimecast covers Advanced threat detection, OnBase covers Content Management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Mimecast and OnBase actually diverge.

Attributes where Mimecast and OnBase differ
AttributeMimecastOnBase
Starting price$4/month$400/month
PlatformsEmail, Cloud, CollaborationWeb, Mobile
CategoryCybersecurityGovernment
Founded20031991

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 OnBase

  • Content Management
  • Workflow Automation
  • Case Management
  • Records Management
  • Intelligent Capture
  • Epic
  • Web support
  • Desktop support

Both cover

  • Microsoft 365
  • Salesforce

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 OnBase
  • Email archiving, continuity and compliance for organisationsnot OnBase

OnBase

  • 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

OnBase

  • Pricing starts at 2,000 USD per month, making it expensive for small agencies
  • Complex implementation and configuration required for government-specific workflows
  • Requires significant IT resources for deployment and ongoing management

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

OnBase

$400/month
  • Government$400/month
    • Content Management
    • Process Automation
    • Case Management

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 OnBase if

  • You need content management.
  • You work on Web, Mobile.
  • You also want workflow automation.
OnBase review

Questions people ask

Is Mimecast or OnBase better?
Neither clearly leads. Mimecast starts at $4/month and OnBase at $400/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or OnBase?
Mimecast starts at $4/month and OnBase at $400/month.
Does Mimecast or OnBase run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. OnBase runs on Web, Mobile.
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 OnBase is typically brought in for.
What can Mimecast do that OnBase cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. OnBase covers Content Management, Workflow Automation, Case Management, Records Management. Both handle Microsoft 365, Salesforce.

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
OnBase: What is OnBase used for in government?

OnBase is used for digital permitting, inspections, and plan review processes. Government agencies use it to streamline workflows, enable online forms, automate approvals, and provide citizen access to application status.

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
OnBase: Does OnBase support mobile access?

Yes. Mobile access is a key feature of OnBase, allowing users to manage documents and cases on the go.

Source
OnBase: What document management capabilities does OnBase provide?

OnBase provides centralized document storage with version control, search and retrieval tools, records management across physical and electronic lifecycles, and compliance with policies and regulations.

Source
OnBase: Can OnBase workflows be customized?

Yes. OnBase is flexible and configurable with user-defined workflows for case management, streamlining processes like accounts payable, employee onboarding, and contract management.

Source
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