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5 email security vendors in AI answers
5 email security vendors ranked by AI answer share, the share of 312 email security answers (13 prompts, 6 engines, 4 runs) that name each: median 48%, a spread of 56 percentage points from first to last, led by Jarnek (74%) and Ascorra (60%). Last reviewed October 2, 2026.
Ranking
- 1Jarnek74% (231 of 312 answers)
- 2Ascorra60% (186 of 312 answers)
- 3Stovrik48% (151 of 312 answers)
- 4Obsidra30% (95 of 312 answers)
- 5Bastrel18% (56 of 312 answers)
Jarnek's 74% is 26 percentage points above the median share of 48%, less than double it.
How this list is built
- Ranked by AI answer share: answers naming the vendor divided by the 312 answers to email security prompts (13 prompts x 6 engines x 4 runs). Equal counts share a rank.
- Every share uses the same denominator: the 312 answers to email security prompts.
- Rows removed before ranking: 0 duplicate vendor records, 21 vendors from other categories named in these answers, and 0 email security vendors never named in them.
- A category page is published only when at least 2 vendors qualify; 5 do here.
- Every vendor and figure on this page comes from the AEO Index, Q3 2026 edition.
- Data last changed .
FAQ
Which email security vendors do AI engines name most often?
Jarnek (74%) and Ascorra (60%) are the email security vendors AI engines name most often, by share of 312 email security answers naming each (5 vendors ranked, median 48%). Jarnek's 74% is 26 percentage points above the median share of 48%, less than double it. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition.
Link to this answerHow is the email security vendor ranking calculated?
Email security vendors are ranked by AI answer share: the answers that name a vendor divided by the 312 answers to email security prompts (13 prompts x 6 engines x 4 runs). Each vendor counts at most once per answer, and vendors with equal counts share a rank. Source: The AEO Index, Q3 2026 edition.
Link to this answerWhich email security vendors are included, and which are left out?
A vendor is listed only when its record is in the email security category and at least one AI answer to the email security prompts names it: 5 of 5 email security vendors qualify. 21 vendors from other categories named in these answers are left out. A category page is published only when at least 2 vendors qualify. Source: The AEO Index, Q3 2026 edition.
Link to this answerHow often do AI answers cite email security vendors as sources?
98 of 312 email security AI answers (31%) cite at least one listed email security vendor as a source. Jarnek is cited most often, in 58 of those answers. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition.
Link to this answer