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Cybersecurity · head to head

Mimecast vs mySidewalk

Mimecast logo

Mimecast

Cybersecurity

Email and collaboration security

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

mySidewalk

Government

Community data dashboards for local government and public health, prewired to federal datasets

From
On request
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; mySidewalk it produces analysis and presentation rather than operational change, so the value has to be re argued at every renewal against services with more visible outputs.
  • They diverge on capability: Mimecast covers Advanced threat detection, mySidewalk covers Prewired federal datasets.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mimecast and mySidewalk actually diverge.

Attributes where Mimecast and mySidewalk differ
AttributeMimecastmySidewalk
Starting price$4/monthOn request
Pricing modelsubscriptionquote
PlatformsEmail, Cloud, CollaborationWeb
CategoryCybersecurityGovernment
Founded2003Unknown

Identical on both: 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 mySidewalk

  • Prewired federal datasets
  • Margin of error handling
  • Custom geographies
  • Published dashboards
  • Local data integration
  • Report generation

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 mySidewalk
  • Email archiving, continuity and compliance for organisationsnot mySidewalk

mySidewalk

  • A public health department producing a community health needs assessment on deadlinenot Mimecast
  • A city applying for federal funding that requires demographic and disparity evidence for a service areanot Mimecast
  • An agency that lost its only analyst who understood American Community Survey margins of errornot Mimecast
  • A council wanting published neighbourhood indicator dashboards residents can browsenot 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

mySidewalk

  • It produces analysis and presentation rather than operational change, so the value has to be re argued at every renewal against services with more visible outputs.
  • Budget frequently comes from a grant, which means the subscription is exposed when the grant cycle ends rather than being protected as core infrastructure.
  • The prewired datasets are American, so the platform has effectively no value outside United States federal statistical sources.
  • Analytical depth is bounded by what the platform exposes, so an agency with a genuine analyst will hit the ceiling and move to a statistical environment.
  • Small area estimates remain small area estimates, and presenting them as polished dashboards can lend unwarranted confidence to figures whose error bars overlap.

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

mySidewalk

On request
  • mySidewalk$undefined/year
    • Quoted annually by agency scope and dataset needs
    • Custom geography and local data integration work priced separately
    • No public price list, though agency contracts are public records

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 mySidewalk if

  • You need prewired federal datasets.
  • You also want margin of error handling.
mySidewalk review

Questions people ask

Is Mimecast or mySidewalk better?
Neither clearly leads. Mimecast starts at $4/month and mySidewalk at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mimecast or mySidewalk?
Mimecast starts at $4/month and mySidewalk at On request.
Does Mimecast or mySidewalk run on more platforms?
Mimecast runs on Email, Cloud, Collaboration. mySidewalk runs on Web.
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 mySidewalk is typically brought in for.
What can Mimecast do that mySidewalk cannot?
Mimecast covers Advanced threat detection, Secure sharing, Email encryption, Message tracking. mySidewalk covers Prewired federal datasets, Margin of error handling, Custom geographies, Published dashboards.

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
mySidewalk: What problem does it actually solve?

Correct use of American Community Survey and federal health data for small geographies, which is difficult and is usually held by one person in an agency.

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
mySidewalk: Is it useful outside the United States?

No. Its value is the maintained pipeline into US federal statistical datasets.

mySidewalk: Who buys it?

Mostly public health departments and city planning or performance teams, often funded from a grant that requires the evidence it produces.

mySidewalk: Can we see comparable contract values?

Yes. Agency contracts are public records and appear in council and health board agenda materials.

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