Every category where a model named Mailtrap 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
Email deliverability and testing tools	Marketing	2%	10 of 110	8%	26	accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for Mailtrap 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 Mailtrap across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

ShowHide

Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	0	1	0	1	2
GPT-5.4 mini	0	1	0	0	1
Gemini 3.5 Flash	0	3	0	0	3
Perplexity Sonar	0	0	2	0	2
Grok 4.20	0	2	0	0	2
Mistral Small	0	1	1	0	2
DeepSeek V4 Flash	0	1	1	0	2
Llama 4 Maverick	0	0	1	0	1
Qwen 3.7 Flash	0	2	0	0	2
Kimi K2	0	3	0	0	3
GLM 4.7 FlashX	0	1	1	0	2
MiniMax M2.5	1	0	0	0	1
GPT-6 Luna	0	0	0	0	0
Muse Glimmer 30B	0	1	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

Direct2 labels1

Paraphrase7 labels1

Comparative21 labels1not counted in share

Budget-constrained4 labelsNone

Scale-constrained8 labelsNone

Negative15 labels2not counted in share

First choiceAlternativeMentionNegative57 labels in all, every segment counted; 2 of the 5 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.

“Folderly or Mailtrap would be the top choices.” MiniMax M2.5 · Email deliverability · direct prompt · first choice

“Mailtrap is a comprehensive email sending and testing platform built with developers and QA teams in mind.” Claude Haiku 4.5 · Email deliverability · comparative prompt · alternative

“For developers: You must use Mailtrap to prevent internal testing emails from reaching customers.” Qwen 3.7 Flash · Email deliverability · comparative prompt · alternative

“Postmark (by ActiveCampaign) or Mailtrap: If your primary concern is developer-sent transactional emails” Gemini 3.5 Flash · Email deliverability · scale prompt · alternative

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.

“Tools like GlockApps, MailReach, and Mailtrap vary in real-time validation depth — only some verify addresses at scale before sending.” Muse Glimmer 30B · Email deliverability · negative prompt · soft negative

“Limitations include no inbox placement testing with real ISP seed lists and no engagement simulation” Claude Haiku 4.5 · Email deliverability · negative prompt · soft negative

Named alongside

The products named in the same answers as Mailtrap, over the 57 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Mailtrap was named but was not.

ShowHide

ProductSame answerTook the first choice insteadHead to head

GlockApps46 of 5718Not among the top eight

MXToolbox28 of 572Not among the top eight

Litmus27 of 571Not among the top eight

Validity Everest25 of 576Not among the top eight

Mail-Tester18 of 573Not among the top eight

ZeroBounce18 of 571Not among the top eight

Google Postmaster Tools17 of 574Not among the top eight

Email on Acid17 of 572Not among the top eight

Mailgun16 of 571Not among the top eight

Folderly12 of 571Not among the top eight

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 Mailtrap. 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 56 of the 57 answers that named Mailtrap and are not a share of its labels.

Domains cited

mailtrap.ioYour site35

guideflow.com24

saleshandy.com23

instantly.ai21

myemailverifier.com20

emailtooltester.com18

amplemarket.com16

mailforge.ai15

prospeo.io15

sender.net15

167 of the 202 domain citations in answers naming Mailtrap came from somebody else's page.

Pages cited

guideflow.com/blog/email-testing-software21

myemailverifier.com/blog/email-deliverability-tools20

saleshandy.com/blog/email-deliverability-tools19

amplemarket.com/blog/best-email-deliverability-tools16

instantly.ai/blog/email-deliverability-monitoring-tools16

mailtrap.io/blog/email-deliverability-tools15

mailforge.ai/blog/email-testing-tools13

omnisend.com/blog/email-deliverability-tools13

Pages are listed as the models cited them.

Search and answers

mailtrap.io is not in Google's top ten for any of the category's searches. In the answers, Mailtrap takes 2% of first choices and GlockApps takes 34%.

ShowHide

In search

Google, US estimates

Position for “email deliverability tool”

–

not in the top ten

Position for “best email deliverability tool”

–

not in the top ten

Searches for its name, Google: 2,900 a month (“mailtrap”)
AI search demand for its name, est.: 53 a month
Organic visits to its site: about 84,286 a month
Searches its site ranks for: 12,524 · 983 in the top three
Sites linking to it: 6,108
Paid Google search: No ads found in the estimate; that does not mean it runs none

Ads on GoogleDetailLess

5 ads · 5 text · 1 shown in the last 30 days

First shown December 2022, as Railsware Products Studio LLC, verified.

On Google's pages: 1 2 3 4

In answers

This edition

Share of first choices

rank 10 of 110 in email deliverability

Segment leader

34%

GlockApps

First choices: 2 across its categories
Named in: 57 answers
Its own site cited: in 56 of the answers that named it

Search figures are US estimates from DataForSEO, read October 5, 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.

What it publishes

ShowHide

Addresses on mailtrap.io

1,507

subdomains included

Content

568

counted in the table below

Documentation

335

Product · Integration

0 · 0

Kind	Pages	Last 90 days	Latest	Categories named
Blog	438	18	2026-09-23	Email verification, Email marketing
Report or ebook	66	0	2026-05-11
Comparison	37	1	2026-08-31
Template or tool	17	11	2026-09-21
Glossary or explainer	6	0	2026-04-24
Case study	3	undated
Webinar or virtual event	1	undated

Most recent

2026-09-23C receive email blog
2026-09-21Templates template or tool
2026-09-21Get all email templates template or tool
2026-09-21Create email template template or tool
2026-09-21Get email template template or tool
2026-09-21Delete email template template or tool

How it is countedHide how it is counted

Every page mailtrap.io exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.

Follow Mailtrap

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.

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 Mailtrap'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 Mailtrap, 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 Mailtrap by email, built from the raw record of the edition. It shows:

where Mailtrap 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 Mailtrap, 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.