Every category where a model named Mimecast Cloud Archive for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant	Since September 2026
Communications archiving and compliance	Security operations	17%	2 of 101	11%	36	accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for Mimecast Cloud Archive yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Mimecast Cloud Archive across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

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Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	1	1	0	0	2
GPT-5.4 mini	0	1	0	0	1
Gemini 3.5 Flash	2	1	1	1	5
Perplexity Sonar	0	0	0	0	0
Grok 4.1 Fast	0	2	1	0	3
Mistral Small	1	0	1	1	3
DeepSeek V4 Flash	0	3	1	0	4
Llama 4 Maverick	0	0	0	0	0
Qwen 3.7 Flash	2	1	0	0	3
Kimi K2	1	2	1	0	4
GLM 4.7 FlashX	0	1	0	0	1
MiniMax M2.5	1	1	1	0	3
GPT-6 Luna	1	1	1	1	4
Muse Glimmer 30B	1	0	1	1	3

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct21 labels6

Paraphrase20 labels5

Comparative18 labelsNone

Budget-constrained8 labels3

Scale-constrained13 labels1

Negative13 labelsNone

First choiceAlternativeMentionNegative93 labels in all, every segment counted; 15 of the 15 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Jatheon or Mimecast — Jatheon offers excellent multi-channel coverage at competitive pricing for mid-market, while Mimecast provides a robust consolidated platform” Kimi K2 · Comms archiving · paraphrase prompt · first choice

“For a true mid-market B2B company, Mimecast or Smarsh Professional Archive tend to offer the best balance of features, scalability, and cost-effectiveness.” Claude Haiku 4.5 · Comms archiving · direct prompt · first choice

“1#1: Mimecast - Cloud-based email archiving solution with advanced search, eDiscovery, and compliance retention policies.” Muse Glimmer 30B · Comms archiving · paraphrase prompt · first choice

“Best for Integrated Security & Archiving: Mimecast or Proofpoint ... Often rated #1 for mid-market companies.” Qwen 3.7 Flash · Comms archiving · direct prompt · first choice

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Include Mimecast in the shortlist. Its archive product covers email and collaboration data, but check that its capture and review capabilities match your actual channels” GPT-6 Luna · Comms archiving · paraphrase prompt · soft negative

“Mimecast remains a powerful tool, but if you choose to use it, you must carefully vet their security protocols” Gemini 3.5 Flash · Comms archiving · negative prompt · soft negative

“its archiving solution can be complex to set up and may require significant administrative overhead” Mistral Small · Comms archiving · negative prompt · soft negative

“2025 certificate compromise... Production environment access and credential exposure.” Muse Glimmer 30B · Comms archiving · negative prompt · soft negative

Named alongside

The products named in the same answers as Mimecast Cloud Archive, over the 93 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Mimecast Cloud Archive was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Smarsh Enterprise Archive76 of 9320Compare →

Proofpoint Enterprise Archive72 of 9311Compare →

Global Relay52 of 9311Not among the top eight

Microsoft Purview39 of 934Compare →

Jatheon38 of 937Compare →

Barracuda Cloud Archiving Service26 of 933Compare →

Google Vault19 of 933Compare →

Theta Lake18 of 930Not among the top eight

Archive36016 of 931Not among the top eight

MailStore Server15 of 936Compare →

A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Mimecast Cloud Archive. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 88 of the 93 answers that named Mimecast Cloud Archive and are not a share of its labels.

Domains cited

jatheon.com71

archondatastore.com51

gartner.com43

smarsh.com38

g2.com34

expertinsights.com30

zipdo.co28

aiemaily.com26

worldmetrics.org24

f6s.com23

368 of the 368 domain citations in answers naming Mimecast Cloud Archive came from somebody else's page.

Pages cited

jatheon.com/blog/best-data-archiving-software64

archondatastore.com/blog/email-archiving-solutions41

gartner.com/reviews/market/digital-communications-governance-and-archiving-solutions33

expertinsights.com/compliance/the-top-email-archiving-solutions-for-businesses26

proofpoint.com/us/products/digital-communications-governance/archive20

clean.email/archive-emails/email-archiving-solutions19

wordwatch.io/blog/best-communications-archiving-platforms-202617

aiemaily.com/blog/best-email-archiving-software-for-compliance15

Pages are listed as the models cited them.

Search and answers

mimecast.com ranks 5 on Google for the category's searches. In the answers, Mimecast Cloud Archive takes 17% of first choices and Smarsh Enterprise Archive takes 20%.

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In search

Google, US estimates

Position for “communications archiving platform”

–

not in the top ten

Position for “communications archiving platforms”

–

not in the top ten

Searches for its name, Google: 30 a month (“mimecast cloud archive”)
AI search demand for its name, est.: 0 a month
Its company's site: mimecast.com shared with Mimecast's other products; the figures are the site's
Organic visits to its site: about 148,929 a month
Searches its site ranks for: 12,907 · 1,030 in the top three
Sites linking to it: 56,562
Paid Google search: No ads found in the estimate; that does not mean it runs none

Ads on GoogleDetailLess

75+ ads · 75 text · 21 shown in the last 30 days

First shown April 2025, as MIMECAST NORTH AMERICA, INC., verified. Ads started 2025-10 to 2026-09: 38 in the year, 37 before. 45 more by other advertisers linking to it.

On Google's pages: 1 2 3 4

In answers

This edition

Share of first choices

17%

rank 2 of 101 in comms archiving

Segment leader

20%

Smarsh Enterprise Archive

First choices: 15 across its categories
Named in: 93 answers
Its own site cited: in 88 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

Names read as Mimecast Cloud Archive

What the judge wrote, as written, with how often. The vendor table decides that these count as Mimecast Cloud Archive; a claim can dispute any of them.

Mimecast 20

Follow Mimecast Cloud Archive

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

Mimecast is the company behind Mimecast Cloud Archive.

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On record

Company records

Also from Mimecast: Mimecast Archiving, Mimecast Email Security, Mimecast Engage, Mimecast Incydr

In its own words

Stated by the vendor, not checked

Positioning: a highly secure and scalable solution that cuts the cost and complexity of managing email archives
mimecast.com/content/cloud-archive
For: IT and Legal teams
mimecast.com/content/cloud-archive
Price stated: Per-employee pricing rather than pricing based on mailboxes or email volume. mimecast.com/content/cloud-email-archiving
Free plan or trial: Schedule a demo mimecast.com/content/email-archiving
Hosting: multiple data centers
Not stated on the pages read: Starting price, integrations, certifications, customers

What Mimecast Cloud Archive's own pages state, read October 5, 2026: mimecast.com/content/cloud-archive, mimecast.com/content/cloud-archiving, mimecast.com/content/email-archiving, mimecast.com/content/cloud-archive-storage, mimecast.com/content/cloud-email-archiving. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Mimecast Cloud Archive's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Mimecast Cloud Archive, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Mimecast Cloud Archive by email, built from the raw record of the edition. It shows:

where Mimecast Cloud Archive is named, by buyer and by framing, and which cells hold its first choices;
the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
its vocabulary against the segment leader's, and the pages the models cited;
who was chosen in the answers that did not name Mimecast Cloud Archive, and every reason the record gives;
a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
one page of published figures cleared to show a buyer.

Badges

Wins only: a badge exists where Mimecast Cloud Archive is ranked in a category's top three this edition. Three sizes, one file each, light and dark; the code is under each.

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Mimecast Cloud Archive is among the products AI models recommend first in Communications archiving and compliance this edition. Each badge says so in the buyer's words, names the edition, and links to the standing. The next edition issues a new badge; this one stays true as a record of October 2026.

Wide · 320 × 104 Website, beside other badges

Show the code

<a href="https://it-ai-index.com/security/communications-archiving-and-compliance/"><img src="https://it-ai-index.com/badges/2026-10/mimecast-cloud-archive--communications-archiving-and-compliance-wide.svg" alt="Among AI models' top three in Communications archiving and compliance, October 2026 Edition, IT AI Recommendation Index" width="320" height="104"></a>

Copy the code as it is. The link is part of the badge: it points at the Communications archiving and compliance standing, where the claim can be checked.

Square · 240 × 240 LinkedIn, slides

Show the code

<a href="https://it-ai-index.com/security/communications-archiving-and-compliance/"><img src="https://it-ai-index.com/badges/2026-10/mimecast-cloud-archive--communications-archiving-and-compliance-square.svg" alt="Among AI models' top three in Communications archiving and compliance, October 2026 Edition, IT AI Recommendation Index" width="240" height="240"></a>

Copy the code as it is. The link is part of the badge: it points at the Communications archiving and compliance standing, where the claim can be checked.

Compact · 200 × 56 Email signature, footer

Show the code

<a href="https://it-ai-index.com/security/communications-archiving-and-compliance/"><img src="https://it-ai-index.com/badges/2026-10/mimecast-cloud-archive--communications-archiving-and-compliance-compact.svg" alt="Among AI models' top three in Communications archiving and compliance, October 2026 Edition, IT AI Recommendation Index" width="200" height="56"></a>

Copy the code as it is. The link is part of the badge: it points at the Communications archiving and compliance standing, where the claim can be checked.

Badges read on light and dark pages. Alt text carries the claim, the category, the edition and the index, so it stays a citation where the image does not load.