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Cloud · head to head

IBM Cloud vs Mimecast

IBM Cloud logo

IBM Cloud

Cloud

Enterprise cloud solutions from a trusted partner

From
Free
Rated
-
Full reviewWebsite
Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

From
$4/month
Rated
-
Full reviewWebsite

The short version

  • Only IBM Cloud has a free tier, so it costs nothing to try first.
  • Each has a real cost: IBM Cloud the USD 200 starter cloud credit is valid for 30 days only; Mimecast no pricing is published for any product or plan, and every route ends at a quote or demo request
  • They diverge on capability: IBM Cloud covers Virtual Servers, Mimecast covers Advanced threat detection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which IBM Cloud and Mimecast actually diverge.

Attributes where IBM Cloud and Mimecast differ
AttributeIBM CloudMimecast
Starting priceFree$4/month
Pricing modelusage-basedsubscription
Free tierYesNo
PlatformsLinux, Windows, Api, CliEmail, Cloud, Collaboration
CategoryCloudCybersecurity
Founded20132003

Identical on both: 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 IBM Cloud

  • Virtual Servers
  • Bare Metal
  • Cloud Foundry
  • Kubernetes
  • Watson AI
  • Blockchain
  • Databases
  • API Gateway

Only in Mimecast

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

Both cover

  • HIPAA
  • Cloud deployment

What people use each for

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

IBM Cloud

  • Running containerized and VM workloads on IBM's public cloudnot Mimecast
  • Building on Watson APIs and IBM middleware as managed servicesnot Mimecast

Mimecast

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

Where each one falls short

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

IBM Cloud

  • The USD 200 starter cloud credit is valid for 30 days only
  • The larger promotional credits are time boxed: USD 1,000 for Bare Metal Servers for VPC over 120 days, USD 2,500 for Power Virtual Server over 90 days, and USD 5,000 for Backup and Recovery over 90 days
  • The USD 5,000 Backup and Recovery promotion is valid for new clients only and requires a checkout promo code
  • The listed promotions carry an expiry date of 31 December 2026
  • Beyond the free tier the account is pay as you go, so cost tracks usage with no published cap

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

Pricing, plan by plan

IBM Cloud

Free
  • Lite PlanFree
    • Free services
    • Limited resources
    • 30-day trial
  • Standard PlanFree
    • Pay-as-you-go
    • Enterprise support
    • Advanced services

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

Which should you pick?

Choose IBM Cloud if

  • You need virtual servers.
  • You want to start without paying.
  • You work on Linux, Windows, Api, Cli.
  • You also want bare metal.
IBM Cloud review

Choose Mimecast if

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

Questions people ask

Is IBM Cloud or Mimecast better?
Neither clearly leads. IBM Cloud starts at Free and Mimecast at $4/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IBM Cloud or Mimecast?
IBM Cloud has a free tier; the other does not. Paid plans start at Free for IBM Cloud and $4/month for Mimecast.
Does IBM Cloud or Mimecast run on more platforms?
IBM Cloud runs on Linux, Windows, Api, Cli. Mimecast runs on Email, Cloud, Collaboration.
Can I use IBM Cloud for free?
Yes. IBM Cloud has a free tier, so you can try it without paying. Mimecast starts at $4/month.
What is IBM Cloud best used for?
IBM Cloud is most often used for running containerized and vm workloads on ibm's public cloud, building on watson apis and ibm middleware as managed services. Of those, running containerized and vm workloads on ibm's public cloud and building on watson apis and ibm middleware as managed services are not what Mimecast is typically brought in for.
What can IBM Cloud do that Mimecast cannot?
IBM Cloud covers Virtual Servers, Bare Metal, Cloud Foundry, Kubernetes. Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. Both handle HIPAA, Cloud deployment.

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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