# Transactional Email & Developer Email APIs AI visibility brands

Canonical: https://devtune.ai/verticals/transactional-email-and-developer-email-apis/brands

Public AI visibility report for Transactional Email & Developer Email APIs companies

Updated: 2026-10-26T11:16:41.76382+00:00

## [SendGrid](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/sendgrid)

Description: Twilio SendGrid is a cloud-based email delivery platform offering a developer-first REST API and SMTP service for transactional email, alongside a Marketing Campaigns product for non-technical marketers. It abstracts infrastructure complexity—including deliverability optimization, sender reputation monitoring, ISP outreach, and real-time analytics—allowing engineering and marketing teams to focus on their core business rather than email operations.
Rank: 1
Presence percent: 23.333333333333332
Brand mention percent: 0
Cited pair count: 35

## [Resend](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/resend)

Description: Resend is an email API platform designed for developers to build, test, and deliver transactional and marketing emails at scale, powered by React Email templates, multi-region infrastructure, and a clean developer experience.
Rank: 2
Presence percent: 22.666666666666664
Brand mention percent: 54
Cited pair count: 34

## [Mailgun](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/mailgun)

Description: Mailgun is a transactional email delivery platform and API service built for developers, offering programmatic email sending via RESTful API and SMTP relay, real-time email validation, inbound routing, deliverability optimization, and pre-send email testing. It is a subsidiary of Sinch AB and part of the Sinch Email portfolio alongside Mailjet and Email on Acid.
Rank: 3
Presence percent: 22
Brand mention percent: 0
Cited pair count: 33

## [Mailtrap](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/mailtrap)

Description: Mailtrap (by Railsware Products Studio LLC) is a unified email platform for developer and product teams, offering a RESTful Email API/SMTP service for reliable transactional and bulk sending, a fake-SMTP Email Sandbox for risk-free pre-production email testing, and an Email Marketing module for campaigns — all in one platform with shared deliverability infrastructure, analytics, and 24/7 expert support.
Rank: 4
Presence percent: 17.333333333333336
Brand mention percent: 0
Cited pair count: 26

## [Amazon SES](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/amazon-ses)

Description: Amazon SES is AWS's cloud-based email sending and receiving infrastructure service, providing a scalable SMTP interface, REST API, and AWS SDK integrations for high-volume transactional and marketing email. It offers deliverability tooling, IP reputation management, enterprise mail management (Mail Manager), and deep integration with the AWS ecosystem—all on a strict pay-as-you-go pricing model.
Rank: 5
Presence percent: 16.666666666666664
Brand mention percent: 0
Cited pair count: 25

## [Loops](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/loops)

Description: Loops is a SaaS-focused email platform that unifies transactional, marketing, and lifecycle email in a single tool. It provides a Notion-style editor for non-technical users, a loop builder for automated sequences, event-driven segmentation, and a developer API with SDKs—allowing product and marketing teams to collaborate on a shared contact base without managing multiple email service providers.
Rank: 6
Presence percent: 4
Brand mention percent: 10
Cited pair count: 6

## [Mailjet](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/mailjet)

Description: Sinch Mailjet is a dual-purpose email platform offering both a marketer-friendly drag-and-drop campaign tool and a developer-grade email API/SMTP infrastructure, designed for teams that need to collaborate across marketing and engineering on transactional and marketing email programs at scale.
Rank: 7
Presence percent: 2.666666666666667
Brand mention percent: 0
Cited pair count: 4

## [SparkPost](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/sparkpost)

Description: Bird Email (formerly SparkPost) is an enterprise-grade cloud email API and deliverability platform, now fully integrated into the Bird omnichannel CRM. It provides high-throughput transactional and marketing email sending via REST API and SMTP relay, layered with proprietary predictive analytics (SparkPost Signals) for inbox placement optimization, Health Score monitoring, spam-trap alerting, and real-time engagement insights. The platform is built on AWS and supports dedicated IPs, dynamic AMP email templates, webhook event streaming, and subaccount management for multi-brand or agency use cases.
Rank: 8
Presence percent: 2
Brand mention percent: 0
Cited pair count: 3

## [Plunk](https://devtune.ai/verticals/transactional-email-and-developer-email-apis/plunk)

Description: Plunk is a bootstrapped, open-source email platform that consolidates transactional email delivery, marketing campaigns, and visual workflow automation into one developer-friendly tool. Operated as a profitable indie side-project out of Belgium, it is self-hostable under the AGPL-3.0 license and uses AWS SES as its delivery backbone, offering a managed interface that removes the complexity of raw cloud email APIs.
Rank: 9
Presence percent: 0.6666666666666667
Brand mention percent: 0.6666666666666667
Cited pair count: 1

## AI search snapshot

Average brand presence: 12.4
Citation count: 3500


## Content type rows

| Citations | Label | Share |
| --- | --- | --- |
| 1063 | Documentation | 30.4 |
| 780 | Blog post | 22.3 |
| 553 | Comparison page | 15.8 |
| 524 | Product page | 15 |
| 456 | Best-tools list | 13 |
| 40 | FAQ page | 1.1 |
| 28 | Article | 0.8 |
| 26 | Community discussion | 0.7 |

Distinct domains: 365
Last updated: 2026-10-26T11:49:54.341648+00:00


## Platform rows

| Citations | Citations per execution | Executions | Platform |
| --- | --- | --- | --- |
| 964 | 7.71 | 125 | chatgpt-search |
| 891 | 8.91 | 100 | bing-copilot-search |
| 696 | 5.66 | 123 | perplexity |
| 568 | 4.62 | 123 | google-ai |
| 381 | 4.48 | 85 | google-ai-mode |



## Source rows

| Citations | Label | Share |
| --- | --- | --- |
| 2949 | Company and commercial sources | 84.3 |
| 424 | Editorial sources | 12.1 |
| 62 | Community sources | 1.8 |
| 32 | Reference and documentation sources | 0.9 |
| 13 | Other | 0.4 |
| 8 | Video sources | 0.2 |
| 5 | Marketplace and directory sources | 0.1 |
| 4 | Social sources | 0.1 |



## Top brand rows

| Display name | Rank | Visibility score |
| --- | --- | --- |
| SendGrid | 1 | 23.3 |
| Resend | 2 | 22.7 |
| Mailgun | 3 | 22 |
| Mailtrap | 4 | 17.3 |
| Amazon SES | 5 | 16.7 |



## Top domain rows

| Citations | Domain |
| --- | --- |
| 283 | postmarkapp.com |
| 246 | resend.com |
| 245 | twilio.com |
| 171 | docs.aws.amazon.com |
| 124 | mailtrap.io |
| 105 | sequenzy.com |
| 99 | mailgun.com |
| 90 | resources.mailertogo.com |

Top3share: 42.1
Window days: 30