How AI Search Is Recommending Hosted Exchange: Monthly Trends

Executive Summary

Google Workspace remains the category leader in Hosted Exchange, but its hold is loosening. The benchmark shows Google Workspace at 37.8% valid recommendation coverage in September 2026 (118 valid recommendations of 312 qualified observations), down 6.7 points from 44.5% in July 2026 (139 of 312). The gap to second-place IONOS narrowed to 21.1 points, down from 26.2 points in July 2026, as both brands moved closer together. Google Workspace's raw mention presence also fell, down 12.2 points from 81.4% in July 2026 (254 mentions) to 69.2% in September 2026 (216 mentions), the largest movement in that metric across the tracked set.

Two brands posted declines beyond the normal range, both for the second consecutive month. Microsoft SharePoint's valid recommendation coverage fell to 0.0% in September 2026 (0 valid recommendations), down 1.6 points from 1.6% in July 2026 (5 valid recommendations), a decline large enough for the benchmark to flag as significant. Rackspace Email dropped 5.1 points from 6.1% in July 2026 (19 valid recommendations) to 1.0% in September 2026 (3 valid recommendations), also beyond the normal range. OVHcloud was the only brand moving upward across the full series, up 2.2 points from 4.2% in July 2026 (13 valid recommendations) to 6.4% in September 2026 (20 valid recommendations), though this remained within normal variation.

The category shows real movement in September 2026, driven less by any single riser and more by two significant decliners and a softening leader. This reverses the quieter August 2026 month, when no brand exceeded normal variation.

Each monthly run begins with 800 prompt-surface observations across the benchmark's defined AI/search surface universe (597 unique questions in July 2026; 639 in August 2026; 646 in September 2026). Of those, 800 mentioned a tracked brand or competitor in each month; 422 were relevant and 378 were irrelevant in July 2026, 461 were relevant and 339 were irrelevant in August 2026, and 435 were relevant and 365 were irrelevant in September 2026. The public metrics use the 312 qualified observations in July 2026, 347 in August 2026, and 312 in September 2026 that survive both qualification stages.

Key Findings

Benchmark Context

The report separates the raw collection universe from the qualified analysis set. Brand-level recommendation percentages are calculated within the qualified benchmark set.

The intermediate August 2026 month saw qualified observations rise to 347 before returning to 312 in September 2026, a fluctuation that affects absolute counts and share calculations across the series.

Benchmark-level metrics summarize the overall qualified observation base and the share of answers structured as recommendations or shortlists across the two months.

Benchmark-Level Metrics

The intermediate August 2026 month peaked higher on both benchmark-level metrics, with recommendation-shaped answer share at 35.7% and valid recommendation shortlist share at 45.0%. September 2026 sits between July and August on these metrics, suggesting the earlier rise was not sustained.

AI Recommendation Trend

The Leader Is Softening While the Tail Weakens

Two brands exceeded the normal range in September 2026, both as decliners: Microsoft SharePoint fell to zero valid recommendations, and Rackspace Email dropped to 1.0% coverage. Google Workspace's lead over IONOS narrowed from 26.2 points in July 2026 to 21.1 points in September 2026, while OVHcloud's cumulative rise moved it from 6th place in July 2026 to 4th place in September 2026, passing Zoho Inventory and Rackspace Email along the way.

What Changed This Month

Google Workspace: Losing Presence Faster Than Coverage

Google Workspace's valid recommendation coverage moved down 6.7 points from 44.5% in July 2026 (139 valid recommendations) to 37.8% in September 2026 (118 valid recommendations). The absolute count fell by 21 observations. The prior-to-current movement was also down 5.1 points from 42.9% in August 2026 (149 valid recommendations).

The more significant shift came in raw mention presence, which fell from 81.4% in July 2026 (254 mentions) to 69.2% in September 2026 (216 mentions), a drop of 12.2 points, the largest presence movement of any tracked brand this period. Rank-one rate declined from 28.8% in July 2026 (90 placements) to 27.6% in September 2026 (86 placements), a smaller relative change than the presence decline.

The distinction to notice: Google Workspace is being named in responses less often overall, and its recommendation coverage is following that presence decline downward, but its rank-one share has held comparatively steady. The leader is losing ground at the mention stage more than at the top-placement stage.

Highest-priority diagnostic: Which prompts or surface families account for the decline in mention presence, and are they the same prompts where Google Workspace previously earned recommendation credit?

Microsoft SharePoint: Recommendations Fall to Zero

Microsoft SharePoint's valid recommendation coverage fell to 0.0% in September 2026 (0 valid recommendations), down 1.6 points from 1.6% in July 2026 (5 valid recommendations). This was the second consecutive monthly decline, from 1.4% in August 2026 (5 valid recommendations), and the movement was large enough for the benchmark to flag as significant.

Top-three rate and rank-one rate both fell to 0.0% in September 2026, from 1.6% and 1.3% respectively in July 2026. Raw mention presence also declined from 2.9% in July 2026 (9 mentions) to 1.9% in September 2026 (6 mentions), though that movement stayed within normal range.

The distinction: Microsoft SharePoint went from a small but real recommendation presence in July 2026 to zero valid recommendations by September 2026. With zero valid recommendations and only 6 mentions in September 2026, this is a small-count signal, but the consistent two-month decline makes it a significant category observation.

Highest-priority diagnostic: Which prompts produced the five valid recommendations in July and August 2026, and what changed in those prompts or surfaces to eliminate them entirely by September?

Rackspace Email: The Sharpest Decliner in the Category

Rackspace Email posted the largest decline across the series, with valid recommendation coverage down 5.1 points from 6.1% in July 2026 (19 valid recommendations) to 1.0% in September 2026 (3 valid recommendations). The prior-to-current drop was 3.0 points from 4.0% in August 2026 (14 valid recommendations), and both movements were large enough for the benchmark to flag as significant declines.

The decline tracks a collapse in raw mention presence, which fell from 8.3% in July 2026 (26 mentions) to 2.6% in September 2026 (8 mentions), a drop of 5.7 points beyond the normal range. Top-three rate held at 1.0% in both July and September 2026, so the loss came almost entirely from reduced presence rather than weaker placement.

The distinction: Rackspace Email's problem is at the presence stage, not the recommendation stage. Fewer responses mention the brand at all, and with only 3 valid recommendations and 8 mentions in September 2026, the brand is approaching the same zero-presence state as Microsoft SharePoint.

Highest-priority diagnostic: Which prompts stopped mentioning Rackspace Email across the series, and which competitor is receiving the recommendation credit instead?

OVHcloud: Sustained Rise Through a Softening Category

OVHcloud was the only brand to move upward in every month of the series, with valid recommendation coverage up 2.2 points from 4.2% in July 2026 (13 valid recommendations) to 6.4% in September 2026 (20 valid recommendations). The movement stayed within normal variation in each month, but the direction was consistent.

The gain came with broader presence and better placement. Raw mention presence rose from 8.3% in July 2026 (26 mentions) to 10.9% in September 2026 (34 mentions). Top-three rate more than doubled from 2.2% (7 placements) to 3.2% (10 placements), and rank-one rate rose from 0.6% (2 placements) to 1.3% (4 placements).

The distinction: OVHcloud's rise is broad-based, spanning presence, coverage, and placement quality, and it is the only tracked brand moving consistently upward. The effect lifted OVHcloud from 6th to 4th place across the series.

Highest-priority diagnostic: Which prompts or surfaces account for the additional valid recommendations, and is the improvement concentrated in a specific surface family?

IONOS: Placement Quality Improves as Coverage Softens

IONOS held second place but lost ground, with valid recommendation coverage down 1.6 points from 18.3% in July 2026 (57 valid recommendations) to 16.7% in September 2026 (52 valid recommendations). The prior-to-current movement was up 0.6 points from 16.1% in August 2026 (56 valid recommendations), a modest recovery.

Placement quality improved across the series. Top-three rate rose from 9.9% in July 2026 (31 placements) to 11.2% in September 2026 (35 placements), and rank-one rate climbed from 3.2% (10 placements) to 5.1% (16 placements). Raw mention presence rose from 34.9% in July 2026 (109 mentions) to 39.4% in September 2026 (123 mentions).

The distinction: IONOS is being mentioned more often and winning more top placements even as its overall coverage share declines. The brand's position in the category is strengthening on quality signals while the headline coverage metric softens.

Highest-priority diagnostic: Which prompts drive the improved rank-one rate, and does the coverage decline concentrate in a particular prompt type or surface?

Buyer-Intent Interpretation

In September 2026, all 312 qualified observations fell into the Brand Recommendation cluster. The benchmark found no qualified observations in the Pricing & Value or Multi-Brand Comparison clusters, meaning the public data cannot answer questions about how AI systems handle price comparisons or head-to-head evaluations in the Hosted Exchange category. The benchmark's current prompt set is concentrated on direct brand recommendation queries, so the commercial questions around pricing perception and competitive positioning remain outside what the public data can address.

Brand Opportunity Summary

The benchmark identifies where attention is warranted; a company-level analysis is needed to explain why.

Evidence Behind the Benchmark

The aggregate metrics are built from prompt-level observations (query, surface, recommendation outcome, rank, sentiment, and citations where exposed). Company-level analysis can go deeper into prompt, competitor, surface, and evidence patterns. Source presence is not automatically treated as proof of causation. The benchmark describes the output distribution it observes; it does not establish why AI systems produced that distribution.

About This Benchmark

This report is part of the LLM Authority Index AI Market Discovery research program.

• AI Industry Market Discovery Methodology
• AI Industry Market Discovery Metrics
• AI Industry Market Discovery Standards

Report-Specific Interpretation Notes

• Small-count movements: Brands with fewer than 20 valid recommendations (Microsoft SharePoint, Intermedia, Rackspace Email, OVHcloud) can show large percentage shifts from small absolute changes. Microsoft SharePoint's movement to 0.0% involves only 5 valid recommendations in July 2026 falling to 0 in September 2026, and Rackspace Email's 5.1-point decline represents 19 valid recommendations falling to 3.
• Qualified denominator vs raw collection: The qualified benchmark set (312 in both July and September 2026) is smaller than the raw prompt collection (800 in both months). Brand-level percentages are calculated within the qualified set only. The intermediate August 2026 month had 347 qualified observations, which affects share comparisons across the series.
• Directional analysis: Movement between months identifies changes worth investigating; it does not by itself establish the cause of those changes. The two significant decliners and the leader's presence decline are signals that warrant prompt-level inspection rather than conclusions about cause.

Next Step

The Public Benchmark Shows Where a Brand Is Winning or Losing. A Company-Level Audit Shows Why.

Beneath the aggregate percentages sit the questions that determine commercial outcomes: which high-intent prompts a brand wins, which competitor takes the recommendation when a brand loses, what attributes AI systems associate with each option, and which external sources shape those answers. The benchmark shows that Google Workspace is losing presence, that Microsoft SharePoint and Rackspace Email have declined significantly, and that OVHcloud is rising, but it does not show which prompts, sources, or surface behaviors produced those outcomes.

A company-specific AI visibility audit maps those prompt, surface, competitor, ranking, sentiment, and evidence-source patterns into a prioritized visibility strategy. For a brand like Microsoft SharePoint, the audit would identify the exact prompts that stopped yielding valid recommendations and the competitor that received the recommendation instead. For Google Workspace, the audit would trace the 12.2-point presence decline to specific prompts and surfaces, separating a broad shift from a concentrated one.

Request an AI visibility audit