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Mimecast Email Archive
Secure the front door. Email is where most attacks arrive — Mimecast Email Archive keeps a tamper-proof, searchable record of all email — for compliance and e-discovery — and keeps you working through outages.
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Mimecast Email Archive is a cloud email archive built for compliance, e-discovery and continuity — one of Mimecast's foundational strengths since 2003. An archive is not the same as a backup: it is a tamper-proof, long-retention, always-searchable record of every email your organisation sends and receives, held to defensible standards so it can be produced for regulators, auditors or litigation years later. Mimecast's archive provides secure, immutable storage with flexible retention policies, fast search across billions of messages, legal hold, and the case-management workflows legal and compliance teams need for e-discovery. It also underpins email continuity — if your primary mail system (Microsoft 365, on-prem Exchange) goes down, users keep sending and receiving through the archive, so an outage does not stop the business. For regulated industries with retention and supervision obligations, and for any organisation that needs to find an old email fast or survive a mail outage, the archive is essential infrastructure. As part of Mimecast's platform, the archive sits alongside email security, so protection and records live together. TechBag scopes, migrates and quotes it in INR/GST.
The Mimecast platform family
This page covers Email Archive — the compliance-archiving layer. The rest of the platform:
Quick facts
30-second orientation- Product
- Mimecast Email Archive — compliance archiving & continuity
- Vendor
- Mimecast (founded 2003 · archiving is core heritage)
- What it is
- Tamper-proof, searchable record of all email
- Not
- A backup — a defensible compliance archive
- For
- Compliance, e-discovery, legal hold, continuity
- Retention
- Flexible, long-term, immutable
- Continuity
- Keep working if primary mail goes down
- Part of
- The Mimecast platform (archive + security)
- Licensing
- Per user / storage
- In India via
- TechBag — quotes, migration, GST invoicing, Tier-1 support
Understand email security before you buy it
Most product pages skip this. We start here — so you buy a capability, not a buzzword.
What is an email archive?
A tamper-proof, long-retention, searchable record of every email — for compliance, e-discovery and legal hold.
Not a backup. A defensible record, plus continuity if mail goes down.
Unprotected inbox vs AI email security — the honest table
What consolidation actually replaces, dimension by dimension.
| Dimension | Unprotected / signature email | Email Archive (Mimecast) |
|---|---|---|
| What it is | A backup (recovery copy) | A defensible compliance archive |
| Retention | Short, operational | Long, immutable, policy-driven |
| e-Discovery | Slow, incomplete, risky | Fast search, legal hold, cases |
| Tamper-proof | Not built to prove | Immutable, defensible |
| Outage | Business stops | Keep working (continuity) |
| End users | IT does every lookup | Self-service history |
| Recovery | Separate tool | Sync & Recover from archive |
| The platform | Records in a silo | Archive + email security together |
An archive is not a backup — it is a defensible, searchable record, plus continuity through outages. On one platform with email security.
The five pieces of the platform
Vendors love diagrams; buyers need to know what they’re actually operating. Here’s the whole platform, demystified.
Immutable Storage
Secure, immutable storage of every email — a tamper-proof record held to defensible standards, so it stands up to regulators and courts.
Retention Engine
Flexible, long-term retention policies — keep what regulation requires for as long as it requires, dispose of the rest defensibly.
e-Discovery & Search
Fast search across billions of messages, legal hold and case management — the e-discovery workflows legal and compliance teams need.
Continuity
If primary mail (M365, Exchange) goes down, users keep sending and receiving through the archive — an outage does not stop the business.
Platform
Part of the Mimecast platform — the archive sits alongside email security, so records and protection live together, not in separate silos.
One agent on every machine, one console over all of them — modules attach without a second operational world.
Twelve capabilities. Store, find, assure.
Mimecast Email Archive keeps a defensible, searchable record — compliance, e-discovery and continuity, part of the portfolio, and paired with the human firewall.
Tamper-Proof Storage
Immutable, write-once storage of every email — the defensible record that stands up to regulators and courts.
Flexible Retention
Long-term retention policies tuned to your regulatory obligations — keep what you must, dispose of the rest defensibly.
Complete Capture
Captures inbound, outbound and internal email automatically — nothing missed, the full record preserved.
Petabyte Scale
Stores and indexes billions of messages at scale — the archive grows with you without slowing search.
Fast e-Discovery Search
Search billions of messages fast with rich filters — finding the email that matters in seconds, not days.
Legal Hold
Place and manage legal holds so relevant email cannot be deleted during litigation — defensible preservation.
Case Management
Case-management workflows for e-discovery — collect, review and produce email for legal and compliance efficiently.
End-User Archive Access
Users search their own archived mail via web and mobile — self-service history that offloads IT.
Email Continuity
If primary mail goes down, users send and receive through the archive — an outage does not stop the business.
Sync & Recover
Recover lost or deleted mailbox items back into the primary system — the archive as a recovery source.
Regulatory Compliance
Meets retention and records obligations across regimes — the defensible archive auditors and regulators expect.
Alongside Email Security
Part of the Mimecast platform — the archive sits with email security, so records and protection live together.
Watch the Mimecast Archive in action
The overview, getting started, and protecting M365 email.
How has Mimecast Cloud Archive helped your business?
The cloud email archive in practice.
Mimecast Sync & Recover
Recovering mailbox items from the archive.
Mimecast's Human Risk Command Center
The platform the archive sits within.
Want a live, India-context walkthrough on your own fleet?
Book a guided demo →The endpoint catches what arrives. Email stops it arriving.
Here’s what genuinely sets Mimecast’s archive apart from a backup.
An archive is not a backup
This distinction matters and is widely misunderstood. A backup is an operational copy for recovering data after loss — it is short-lived and not built to prove anything. An archive is a compliance record: a tamper-proof, long-retention, always-searchable store of every email, held to defensible standards so it can be produced for a regulator, auditor or court years later and stand up to scrutiny. You cannot satisfy a retention obligation or an e-discovery request with a backup. Regulated organisations need a genuine archive — and even unregulated ones benefit from a searchable, defensible record. Mimecast has built exactly this since 2003; archiving is core heritage, not a bolt-on.
Find any email, fast — for e-discovery
When legal or compliance needs an email — for litigation, a regulatory request, an internal investigation — they need to find it fast among billions of messages, preserve it defensibly under legal hold, and produce it without altering it. Doing that against a primary mailbox or a backup is slow, incomplete and legally risky. Mimecast's archive is built for it: fast search across the entire record, legal hold to prevent deletion during litigation, and case-management workflows to collect, review and produce. For any organisation that has ever scrambled to find an old email under time pressure, that e-discovery capability is the archive earning its keep.
Compliance and retention, defensibly
Many industries are legally required to retain business email for defined periods and to be able to produce it on demand — financial services, healthcare, legal, government. Meeting that obligation requires immutable storage, flexible retention policies mapped to the specific regulation, and the ability to demonstrate the record has not been tampered with. Mimecast's archive provides all of this: keep what regulation requires for as long as it requires, dispose of the rest defensibly, and prove the record's integrity to auditors. For regulated organisations, a compliant archive is not optional infrastructure — it is a condition of operating.
Continuity — keep working through an outage
The archive delivers a second, often under-appreciated benefit: email continuity. If your primary mail system — Microsoft 365 or on-premises Exchange — suffers an outage, your people normally stop being able to send and receive, and the business grinds to a halt. With Mimecast, users can keep sending and receiving through the archive during the outage, so an incident that would otherwise stop work becomes a non-event. In a world where email is still mission-critical and cloud outages do happen, that continuity — a guaranteed way to keep communicating when the primary system is down — is real operational resilience, delivered by the same archive that handles compliance.
Records and protection, together
Because the archive is part of Mimecast's platform, it sits alongside email security rather than in a separate silo. That coherence has practical value: the same vendor that protects your inbound email keeps your defensible record and your continuity, managed together. You avoid the fragmentation of a security tool from one vendor, an archive from another and a continuity solution from a third — each with its own console, contract and integration gap. For organisations that value consolidation, having email protection, records and resilience on one platform is simpler to run and easier to reason about.
The honest scope
Mimecast's archive is mature, defensible and a genuine heritage strength, especially valuable if you run Mimecast for email security (records and protection on one platform, plus continuity). Microsoft 365 offers native archiving and retention via Purview if you are all-in on Microsoft and E5-licensed; dedicated archiving/supervision specialists (Global Relay, Smarsh) are deep in regulated financial-services compliance. Mimecast's edge is a proven archive integrated with email security and continuity in one platform. TechBag scopes Mimecast's archive vs the native Microsoft option and the specialists, including migration of an existing archive, for your needs.
The numbers behind the platform
What your archiving journey looks like
Archive scoping
Your retention obligations, your e-discovery needs, any existing archive to migrate, and whether continuity matters. TechBag scopes it free.
Migrate & capture
Existing archive migrated (if any); Mimecast capturing all inbound, outbound and internal mail immutably; retention policies mapped to regulation.
e-Discovery & continuity
Search, legal hold and case management live for legal; continuity configured so an outage does not stop the business.
Records steady state
A defensible, searchable record; continuity ready; archive alongside email security. TechBag models the mix in INR/GST.
Trusted across regulated industries in 100+ countries
The review scoreboard
Modelled on Gartner Peer Insights structure. *Counts and breakdowns are illustrative pending verified review collection.
Quick poll — what’s driving your evaluation?
Talk to an advisor“An archive is not a backup — we learned that the hard way in a regulatory request. Mimecast's archive gave us fast, defensible search and legal hold. It stood up to the auditors.”
“e-Discovery used to take our legal team days of scrambling. Now it is minutes — search, hold, produce, done. The archive earns its keep every time we need it.”
“When M365 had an outage, continuity kept our people sending and receiving through the archive. An incident that would have stopped the business was a non-event.”
“Keeping the archive on the same Mimecast platform as our email security means records and protection are managed together. One less silo, one less contract.”
“Retention policies mapped cleanly to our regulatory obligations — keep what we must, dispose defensibly. Audit-ready.”
“We evaluated Microsoft Purview for native archiving — capable if all-E5. We chose Mimecast for the proven archive plus continuity and the platform fit.”
“Sync & Recover pulled deleted mailbox items back into Exchange during an incident — the archive doubling as a recovery source.”
“Migrating our old archive across was the concern — TechBag and Mimecast handled it. End-users now self-serve their own history via web and mobile.”
Where everyone sits — the grids
Analyst firms bury this view behind paywalls, and G2 retired its Grid. So here’s TechBag’s synthesis of the email security market — tap any vendor to see why it sits where it does.
TechBag Email-Security Grid
Execution strength vs product vision — the classic market map, minus the paywall.
Proven archive + continuity on the email platform — this page's product.
Detection × Portfolio Integration
The grid nobody publishes — how strong the email detection is vs how integrated with the wider security portfolio.
Archive + continuity + platform fit — the corner it owns.
Positions are TechBag’s illustrative synthesis of public review-platform data and vendor documentation — not a reproduction of any analyst graphic. Verify before relying on it.
Email Archive vs the field
The native option and the archiving specialists — honest lanes; the edge is archive + continuity on the email platform.
| Dimension | Mimecast Email Archive | Microsoft Purview | Global Relay | Barracuda / Proofpoint archive | No archive (backup only) |
|---|---|---|---|---|---|
| Approach | Archive + security + continuity | M365-native | Regulated specialist | Email-vendor archive | The gap |
| e-Discovery & search | Fast, mature | Capable (E5) | Deep | Solid | None |
| Compliance/retention | Defensible, flexible | Strong (E5) | Deepest regulated | Good | None |
| Continuity | Built in | Not native | Not the focus | Sometimes | None |
| Best fit | Mimecast email shops wanting archive + continuity on one platform | All-Microsoft E5 estates | Regulated financial-services archiving-first | Buyers standardised on another email vendor | Nobody with retention obligations |
Which email-security approach fits you?
Honest fit signals — because the fastest way to lose your trust is to pretend one product wins every scenario.
Choose Mimecast Email Archive if…
- ✓You need a defensible archive for compliance and e-discovery
- ✓Email continuity (work through an outage) matters
- ✓You run (or want) Mimecast for email security
- ✓You value archive + protection + continuity on one platform
Choose Microsoft Purview if…
- ✓You are all-in on Microsoft E5 and want native archiving
Choose Global Relay if…
- ✓You are financial-services and want a regulated archiving specialist
Choose another vendor's archive if…
- ✓You are standardised on a different email-security vendor
No archive (backup only) if…
- ✓Not advisable if you have retention obligations — a backup is not an archive
What do email threats cost you?
Drag the sliders (count users; IT-hour cost as loaded incident rate). Estimates assume ~1.5 hours per user per year handling email threats that reach the inbox without AI filtering, with ~70% removed by stopping the mass at the gateway — the avoided-breach value (most attacks start here) is the larger, unpriced win. Illustrative.
Loaded cost = salary + overheads per productive hour. Illustrative only — your TechBag quote models actual device counts and modules.
Three ways to consume it
Mimecast Email Archive prices per user/storage. TechBag scopes it (migration, retention, continuity, and the fit with email security) in one GST quote.
Email Archive
Best for compliance & e-discovery
- Tamper-proof, immutable record
- Fast search, legal hold, case mgmt
- Flexible retention policies
+ Platform add-ons
Best for a broader rollout
- Scoped to your estate
- Add-on modules as needed
- Phased, right-sized deployment
+ Continuity & platform
Best for resilience
- Work through primary-mail outages
- Alongside email security, one platform
- TechBag scopes migration & the mix
Buy it for less — TechBag pricing beats list
Whatever the list prices above, TechBag negotiates a significantly better deal — with GST-compliant INR invoicing and local support. Ask us for your discounted quote.
Get an India-ready quote
Tell us your device counts and current tools — we’ll model it against what you spend today.
The 8 questions to ask every vendor
Take this into your next vendor call — including ours.
Confirm you need a defensible ARCHIVE (immutable, e-discovery-ready), not just a backup — the two are different.
Test search speed across a large volume, plus legal hold and case management for your legal team.
Verify retention policies map to YOUR specific regulatory obligations — keep and dispose defensibly.
Decide whether email continuity (work through a primary-mail outage) matters — the archive's second job.
Scope migrating any existing archive across — TechBag and Mimecast handle the cutover.
Decide whether archive + email security + continuity on one Mimecast platform suits you.
If E5-heavy, compare Microsoft Purview; if regulated finance, compare Global Relay/Smarsh.
Right-size per user/storage — TechBag scopes and quotes in INR/GST.
Questions buyers ask
Ready to build a defensible record?
Scope an archive PoC (test e-discovery search and legal hold on your mail), plan a migration from your existing archive, or let a TechBag advisor design your compliance and continuity.
Stats, ratings, review counts and pricing are illustrative and sourced from public materials; verify before purchase.