# Best Transactional Email Software - Page 9

## How Many Transactional Email Software Products Does G2 Track?

**Total Products under this Category:** 136

### Category Stats (Aug 2026)

- **Average Rating:** 4.41/5 (↑0.01 vs Jul 2026) The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** Turbosmtp (+1.65%) - Among all products in this category, Turbosmtp recorded the largest rating increase compared to last month

_Last updated: August 05, 2026_

## How Does G2 Rank Transactional Email Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 31,800+ Authentic Reviews
- 136+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Transactional Email Software
 ![G2 Grid® for Transactional Email Software plotting products by satisfaction and market presence](https://www.g2.com/categories/transactional-email/grids.png?focus%5B%5D=18316&focus%5B%5D=2764&focus%5B%5D=3435&focus%5B%5D=3644&focus%5B%5D=15592&focus%5B%5D=1759&focus%5B%5D=56231&focus%5B%5D=159850)

Highlighted products: Customer.io, Amazon Simple Email Service (Amazon SES), Brevo Marketing Platform, Omnisend, Email API, Dotdigital, MoEngage, and Zoho ZeptoMail.

Underlying data: [Grid® JSON](https://www.g2.com/categories/transactional-email/grids.json?focus%5B%5D=customer-io&focus%5B%5D=amazon-simple-email-service-amazon-ses&focus%5B%5D=brevo-marketing-platform&focus%5B%5D=omnisend&focus%5B%5D=netcore-private-limited-email-api&focus%5B%5D=dotdigital&focus%5B%5D=moengage&focus%5B%5D=zoho-zeptomail)

**Sponsored**

### ZEPIC

ZEPIC is an AI-infused, unified Customer Engagement Platform that makes possible hyper-personalised customer experiences. With its built-in Customer Data Platform (CDP), ZEPIC provides a Customer 360 view that acts as a single source of truth for all customer-facing teams. Key capabilities that include Audience Segmentation, Customer Journeys and Omnichannel Activation enable businesses to build real-time, hyper-personalized experiences throughout the customer lifecycle. Used by enterprises and small business alike, the award-winning platform's self-serve, drag & drop interface empowers multiple customer-facing teams to create meaningful connections with their customers.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=225&secure%5Bchosen_at%5D=2026-08-08T15%3A52%3A16Z&secure%5Bdisplayable_resource_id%5D=225&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=225&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1402206&secure%5Bresource_id%5D=225&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Ftransactional-email%3Fpage%3D9%26via%3Dmrc&secure%5Btoken%5D=e2594cc8a3950a36f7f72b608db2d87ac2a298bc6a18e07f32edd7fe94dac6e7&secure%5Burl%5D=https%3A%2F%2Fwww.zepic.com%3Futm_source%3DG2clickads%26utm_medium%3DG2%26utm_campaign%3DCategory%26utm_id%3DG2%26utm_term%3DRetail&secure%5Burl_type%5D=custom_url)

### [mailpipe](https://www.g2.com/products/mailpipe/reviews)

Web-based solution for businesses that provides tools to create, edit, analyze and improve email marketing.

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### Who Is the Company Behind mailpipe?

- **Seller:** [mailpipe](https://www.g2.com/sellers/mailpipe)
- **HQ Location:** Tel Aviv, IL
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=396708614df657954336c8e3a025d520ddab1f840f8f15e229b3ff8b1b021efb&secure%5Burl%5D=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmailpipe&secure%5Burl_type%5D=linkedin_company_website)  
2 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of mailpipe?

**["More marketing in less time with MailPipe"](https://www.g2.com/survey_responses/mailpipe-review-5328876)**

**Rating:** 5.0/5.0 stars

_— Alexis L._

[Read full review](https://www.g2.com/survey_responses/mailpipe-review-5328876)

#### What Are G2 Users Discussing About mailpipe?

- [What is mailpipe used for?](https://www.g2.com/discussions/what-is-mailpipe-used-for)

### [Mailsoftly](https://www.g2.com/products/mailsoftly/reviews)

Mailsoftly is an email marketing and automation platform built for small businesses, nonprofits, professional services firms, consultants, and government and public-sector institutions. Build segmented contact lists, personalize your campaigns, and automate your whole customer lifecycle from one simple dashboard, with real people ready to help when you need them. What keeps Mailsoftly customers is not a longer feature list. It is the things that actually matter day to day: Real human support. Fast, helpful, and included. We even help you set up and review your first campaign for free. Deliverability handled for you. We set up your email authentication (SPF, DKIM, DMARC) and monitor your sender reputation, so your emails reach the inbox instead of the spam folder. Genuinely easy to use. Capable enough for advanced campaigns, simple enough that you do not need a marketing operations team to run it. Pricing that stays sane as you grow. Fair pricing that does not balloon the moment your contact list does. Automation without the complexity. No-code conditional logic, smart workflows, and AI assistance where it genuinely helps. Nonprofits and associations receive a 20 percent discount. For nonprofits and government and public-sector teams, we support purchase orders, invoicing, and contracts for organizations that cannot pay by card. Mailsoftly is GDPR and KVKK compliant. Main features: Contact Segmentation Email Lists Personalized Email Bulk Actions Detailed Statistics Email Design Industry Email Templates Email Automation Email Testing Email Parser Email Collector Integrations: a native Shopify app, Zapier, WordPress, and Google Workspace, plus thousands of apps through Zapier. Whether you are sending a member newsletter, a donor appeal, a client update, a citizen notice, or a product announcement, Mailsoftly helps you reach the inbox and get a response, without the cost or the learning curve of enterprise tools.

**Average Rating:** 4.9/5.0

**Total Reviews:** 4

#### Who Is the Company Behind Mailsoftly?

- **Seller:** [Albert Solino](https://www.g2.com/sellers/albert-solino)
- **HQ Location:** San Ramon, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=13e2de88509621e6bd019390e2c727ec98e532fbebc2294b9361ac25220f5f6c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmailsoftly&secure%5Burl_type%5D=linkedin_company_website)  
9 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Do G2 Reviewers Say About Mailsoftly?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **transparent analytics** of Mailsoftly, enabling clear insights into campaign performance and engagement.
- Users love the **flexible automations** of Mailsoftly, simplifying email workflows and enhancing engagement effortlessly.
- Users love the **flexible automations** that simplify setting up various email marketing sequences effortlessly.
- Users love the **cost-effective** nature of Mailsoftly, enjoying great value while achieving excellent email deliverability.
- Users praise the **top-notch customer support** from Mailsoftly, highlighting quick responses and effective assistance.

#### What Are Recent G2 Reviews of Mailsoftly?

**["Best Customer Support ever. It fully satisfied our requirements"](https://www.g2.com/survey_responses/mailsoftly-review-9095813)**

**Rating:** 5.0/5.0 stars

_— Eylem A._

[Read full review](https://www.g2.com/survey_responses/mailsoftly-review-9095813)

**["Powerful, Easy-to-Use Email Platform with Excellent Support and Great Open Rates"](https://www.g2.com/survey_responses/mailsoftly-review-11088661)**

**Rating:** 5.0/5.0 stars

_— Uygar T._

[Read full review](https://www.g2.com/survey_responses/mailsoftly-review-11088661)

### [Muli](https://www.g2.com/products/flynner-muli/reviews)

Muli is a no-code email automation platform built for Stripe users. It allows businesses to automatically send customized emails based on Stripe subscription and payment events. With an intuitive email builder and analytics, companies can manage transactional and lifecycle emails without backend development.

#### Who Is the Company Behind Muli?

- **Seller:** [Muli](https://www.g2.com/sellers/muli)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [OhMySMTP](https://www.g2.com/products/ohmysmtp/reviews)

Fast & Reliable Transactional Email Delivery Independent, privacy-focused and eco-friendly transactional emails

#### Who Is the Company Behind OhMySMTP?

- **Seller:** [OhMySMTP](https://www.g2.com/sellers/ohmysmtp)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

### [Omnivery](https://www.g2.com/products/omnivery-omnivery/reviews)

Omnivery is a security-first transactional email platform for teams whose password resets, 2FA codes, receipts, and confirmations have to arrive — in the inbox, on time. It provides both an SMTP relay and a REST API natively compatible with the SendGrid v3, Mailgun v3, and SparkPost v1 schemas, so most integrations migrate with no code changes. Its foundations are unusual for the category. Omnivery runs on 100% owned infrastructure — no third-party cloud — and enforces strict sender vetting: every customer and every sending domain is reviewed before activation, there are no free plans, and the result is a clean shared-IP neighbourhood that outperforms dedicated IPs for most senders. Deliverability is handled by senior human analysts who contact you before issues become incidents, not by automated alerts. On compliance, Omnivery is certified to ISO 27001, ISO 27701, and HIPAA — a combination unique among transactional providers — never stores message content, and offers data residency in the EU or US. Native security features include phishing protection, email journaling for litigation defence, and a Bot Detection API that identifies non-human interactions (used by Beehiiv to prevent $2M+/month in ad fraud). Heritage: 18+ years of deliverability expertise originating with Mailkit (2006, Czech Republic).

#### Who Is the Company Behind Omnivery?

- **Seller:** [Omnivery](https://www.g2.com/sellers/omnivery)
- **Year Founded:** 2021
- **HQ Location:** Prague, CZ
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=86a7ccff318c9a2a51b05f84722df76e0ef9edba9db32177afd3e58d7bdcd37f&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F77359430&secure%5Burl_type%5D=linkedin_company_website)  
6 employees on LinkedIn®

### [OMQ Reply | ChatGPT/GPT-4 Beta-Version](https://www.g2.com/products/omq-reply-chatgpt-gpt-4-beta-version/reviews)

NEW: OMQ releases the first German chatbot based on ChatGPT/GPT-4. The beta version is now available for testing to companies from all industries. OMQ Reply brings the ticket system to your inbox and automatically replies with precise solutions through a self-learning knowledge base. The process completely automated, allowing agents to focus on more individual questions. Emails come into the inbox and are automatically opened and read by OMQ Reply, then it highlights the questions that need to be answered. OMQ Artificial Intelligence understands the customer requests and builds an email reply with the matching entries from the knowledge base.

#### Who Is the Company Behind OMQ Reply | ChatGPT/GPT-4 Beta-Version?

- **Seller:** [OMQ](https://www.g2.com/sellers/omq)
- **Year Founded:** 2010
- **HQ Location:** Berlin
- **Twitter:** @OMQ\_AI  
368 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ac3e9b45a69642717bb37eaa19951d9f663bbc1fe6b1980b2a6014b534abaa13&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fomq&secure%5Burl_type%5D=linkedin_company_website)  
10 employees on LinkedIn®

### [OpenText Core Messaging](https://www.g2.com/products/opentext-core-messaging/reviews)

Effective omni-channel communications with key constituents are essential for every part of business. Using separate services for voice, email, SMS and fax communications can lead to customer confusion and disjointed communications with limited interoperability or visibility. As the pace of business change accelerates, companies must be able to deliver time-sensitive and relevant communications to customers, business partners and other stakeholders in the format they prefer.

#### Who Is the Company Behind OpenText Core Messaging?

- **Seller:** [OpenText](https://www.g2.com/sellers/opentext)
- **Year Founded:** 1991
- **HQ Location:** Waterloo, ON
- **Twitter:** @OpenText  
21,565 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6c339a6555764b5ffce77c3df08d6ed9c9b1cb1ee1baeebac8435f0485b7cca5&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F2709%2F&secure%5Burl_type%5D=linkedin_company_website)  
23,048 employees on LinkedIn®
- **Ownership:** NASDAQ:OTEX

### [Qboxmail](https://www.g2.com/products/qboxmail/reviews)

Qboxmail is a European email hosting provider based in Italy, known for developing all its Control Panels and applications entirely in-house, giving us a unique edge in customization and performance. Our service is fully white-label, empowering Partner Resellers (MSPs, Telcos, ISPs, and Hosting Providers) to seamlessly enhance their offerings with robust, professional email solutions. Over 35,000 companies across more than 40 countries trust Qboxmail, thanks to our high IP reputation for excellent deliverability and strong security systems safeguarding mailboxes from threats. We provide dedicated support and intuitive software, helping resellers set up and manage their customers’ mailboxes with minimal effort. By saving time and resources, Partners can focus on other revenue-generating activities and grow more effectively.

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Qboxmail?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Qboxmail?

- **Seller:** [Qboxmail](https://www.g2.com/sellers/qboxmail)
- **Year Founded:** 2016
- **HQ Location:** Prato, IT
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=2cbb692d802a717d63ee28d281715de2dd3b8a9124fd343d856a46b91ebe3d8d&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fqboxmail&secure%5Burl_type%5D=linkedin_company_website)  
14 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Do G2 Reviewers Say About Qboxmail?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise the **responsive customer support** of Qboxmail, appreciating timely assistance for their queries and issues.
- Users value the **data protection** features of Qboxmail, ensuring their information remains secure and safeguarded.
- Users praise the **ease of use** of Qboxmail, finding it intuitive and user-friendly for all levels.
- Users praise the **malware protection** of Qboxmail, feeling secure and confident in their email communications.
- Users value the **security** of Qboxmail, ensuring their data remains safe and protected at all times.

#### What Are Recent G2 Reviews of Qboxmail?

**["Qboxmail, your Mail Server in Cloud"](https://www.g2.com/survey_responses/qboxmail-review-10849209)**

**Rating:** 5.0/5.0 stars

_— Savino Simone L._

[Read full review](https://www.g2.com/survey_responses/qboxmail-review-10849209)

### [Raven](https://www.g2.com/products/raven-raven/reviews)

Raven is a centralized platform designed to streamline the management and tracking of transactional notifications across multiple communication channels, including Email, SMS, Push, WhatsApp, Voice, Slack, and In-App messaging. By integrating with over 40 major providers, Raven simplifies the orchestration of notifications, allowing businesses to deliver consistent and timely messages to their users without the complexity of managing multiple APIs. Key Features and Functionality: - Unified API Integration: Connect with 40+ major providers across 10 channels through a single API, eliminating the need to manage multiple integrations. - No-Code Template Editor: Design and update notification templates across channels without deployment, ensuring relevant and consistent content. - Intelligent Orchestration: Configure fallback and retry rules to ensure critical notifications reach users via their preferred channels. - Comprehensive Logs and Analytics: Access consolidated logs and actionable insights from all vendors in a single dashboard to monitor and optimize notification performance. - Scalability and Reliability: Handle high volumes of notifications with 99.99% infrastructure uptime and an average latency of 100ms in sending to providers. Primary Value and User Solutions: Raven addresses the challenges businesses face in managing multi-channel notifications by providing a unified platform that simplifies integration, enhances message consistency, and ensures reliable delivery. By reducing the engineering effort required to manage multiple APIs and offering tools for intelligent routing and analytics, Raven enables businesses to focus on delivering exceptional user experiences without the overhead of complex notification systems.

#### Who Is the Company Behind Raven?

- **Seller:** [Raven](https://www.g2.com/sellers/raven)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Relayzo](https://www.g2.com/products/relayzo/reviews)

Relayzo is a robust, self-hosted email marketing solution designed to give your business full control over your campaigns and data. Engineered for marketers and technical teams alike, Relayzo offers an all-in-one platform where you can: • Customize & Control: Tailor your email templates, automate workflows, and manage subscriber lists—ensuring every campaign aligns perfectly with your brand and messaging. • Advanced Automation: Leverage powerful automation tools to create personalized drip campaigns, trigger-based emails, and A/B testing routines that optimize your engagement and conversion rates. • Real-Time Analytics: Gain deep insights into campaign performance with comprehensive dashboards that track open rates, click-throughs, and other key metrics in real time. • Enhanced Deliverability: Enjoy robust deliverability features designed to maximize inbox placement while maintaining compliance with data privacy standards. • Seamless Integrations: Easily connect with your existing CRM, e-commerce platforms, or other marketing tools to streamline your workflow and centralize your marketing efforts. With Relayzo, you not only secure your data behind your own firewall but also benefit from the flexibility to scale and customize your email marketing strategy as your business grows. Enjoy complete autonomy over your marketing operations with a solution built to empower your business every step of the way.

#### Who Is the Company Behind Relayzo?

- **Seller:** [InnvoTeams](https://www.g2.com/sellers/innvoteams)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Rocketmailer](https://www.g2.com/products/rocketmailer-rocketmailer/reviews)

A digital messaging platform that helps your business communicate personally, reliably and automatically via email, SMS and voice broadcasting - at scale. \*ONLY AVAILABLE IN AFRICA.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Rocketmailer?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Rocketmailer?

- **Seller:** [Rocketmailer](https://www.g2.com/sellers/rocketmailer)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e48ea92502ffd2b4b9958a2d3e6a473cc9e97232ff6b86ada0e8dfe749f9c881&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Frocketmailerza&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Do G2 Reviewers Say About Rocketmailer?

_AI-generated summary from verified user reviews_

##### Pros

- Users find the **email campaign creation intuitive** , making it easy to navigate and utilize Rocketmailer effectively.
- Users appreciate the **simple interface** for creating email campaigns with Rocketmailer, making the process easy and efficient.
- Users appreciate the **simple user interface** for creating email campaigns with Rocketmailer, making the process easy and efficient.
- Users find the **simple user interface** of Rocketmailer easy for creating email campaigns effortlessly.
- Users appreciate the **user-friendly interface** of Rocketmailer, making email campaign creation simple and efficient.

##### Cons

- Users urge Rocketmailer to enhance their **poor customer support** as it significantly impacts user experience and satisfaction.

#### What Are Recent G2 Reviews of Rocketmailer?

**["Marketing growth"](https://www.g2.com/survey_responses/rocketmailer-review-7038528)**

**Rating:** 4.5/5.0 stars

_— Verified User in Computer Software_

[Read full review](https://www.g2.com/survey_responses/rocketmailer-review-7038528)

### [Sarv TES](https://www.g2.com/products/sarv-tes/reviews)

Sarv Transactional Email Service (Sarv TES) is a Pay as uses service with real-time easy access of statistics like open, click, bounce, delivered, complaints by Dashboard & HTTP API with Webhooks method in JSON, XML and POST data structure.

#### Who Is the Company Behind Sarv TES?

- **Seller:** [sarv.com](https://www.g2.com/sellers/sarv-com)
- **Year Founded:** 2011
- **HQ Location:** Jaipur, IN
- **Twitter:** @SarvOfficial  
4,190 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e578a0c4cb31d6c72bb151ce6437a6d8560f48d4cbf44d5b478c9b96d0bb90f3&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsarv-com&secure%5Burl_type%5D=linkedin_company_website)  
249 employees on LinkedIn®

### [Sendmux](https://www.g2.com/products/sendmux/reviews)

Sendmux gives AI agents their own email inbox and a controlled way to send mail. Each agent can have a dedicated mailbox, read threads, handle attachments, send replies, and react to new messages through webhooks or Server-Sent Events. For teams building agents that need real email in production, that means fewer custom glue scripts and fewer fragile Gmail-style workarounds. Outbound email can run through Gmail OAuth, Outlook OAuth, SMTP providers, or managed Amazon SES. Teams can spread sending across providers with weighted routing, sender-domain routing, health checks, failover, and quotas by second, minute, hour, or day. That matters when one provider is not enough, or when customers already have approved sending infrastructure they want to keep using. Sendmux also gives developers the practical pieces around the inbox: Mailbox, Sending, and Management APIs, OpenAPI docs, SDKs for TypeScript, Python, Go, PHP, and Ruby, the sendmux CLI, MCP tools, and official Sendmux Skills for agent workflows. It is built for AI agent products, automation agencies, platform builders, support agents, scheduling agents, ops workflows, and controlled BYO-provider outbound email setups. Pricing is usage-based, with no per-seat or per-mailbox fees.

#### Who Is the Company Behind Sendmux?

- **Seller:** [Jonah and Associates](https://www.g2.com/sellers/jonah-and-associates-2026-06-26)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=dfd81de0ff4b61240e3654091da2472d53330837e35ed32440182708cc8309db&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsendmux&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [SMTP Server](https://www.g2.com/products/smtp-server/reviews)

SMTP is a simple mail transfer protocol which is used for sending bulk emails to the mass audience. The SMTP server is primarily used to send, receive or relay messages between sender and receiver. The servers we provide are whitelabelled and compatible with major clients.

#### Who Is the Company Behind SMTP Server?

- **Seller:** [SMTPGET](https://www.g2.com/sellers/smtpget)
- **Year Founded:** 2014
- **HQ Location:** Miami Beach, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=43a028f1a09f14055d5fa94425c88d0575f62539ed0e257eb2ed3e1867cd820e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsmtpget&secure%5Burl_type%5D=linkedin_company_website)  
3 employees on LinkedIn®

### [Userlist](https://www.g2.com/products/userlist/reviews)

Customer messaging tool for SaaS companies. More efficient than building it yourself; less complex than Intercom.

**Average Rating:** 5.0/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate Userlist?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Userlist?

- **Seller:** [Userlist.io](https://www.g2.com/sellers/userlist-io)
- **Year Founded:** 2017
- **HQ Location:** Atlanta, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=9bffba84b71ea04c943ea11a664aef661d33e3d4cd422ce78194632d28df2002&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fuserlist%2F&secure%5Burl_type%5D=linkedin_company_website)  
4 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 50% Large, 50% Small

#### What Are Recent G2 Reviews of Userlist?

**["Userlist is the best Email System Ever!"](https://www.g2.com/survey_responses/userlist-review-7298010)**

**Rating:** 5.0/5.0 stars

_— Tony W._

[Read full review](https://www.g2.com/survey_responses/userlist-review-7298010)

**["A simple yet effective marketing automation tool for product led SaaS companies"](https://www.g2.com/survey_responses/userlist-review-9836460)**

**Rating:** 5.0/5.0 stars

_— Vinaya Kumar B._

[Read full review](https://www.g2.com/survey_responses/userlist-review-9836460)

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[Browse Transactional Email Themes](/categories/transactional-email/themes)

 ![Yukta Rustagi](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Yukta Rustagi")
YR

Researched and written by [Yukta Rustagi](https://research.g2.com/insights/author/yukta-rustagi)

Updated October 3, 2024

**Transactional email software** refers to software that sends emails in response to pre-established actions taken by recipients. These products send email notifications in response to users’ actions; some examples include a welcome email after creating a new social media account, an email receipt from an e-commerce transaction, or an email for a new newsletter subscription. Businesses use these tools for automating personalized emails as transactions occur. Teams use transactional email software to track metrics such as emails sent, received, opened, and bounced. Transactional email tools are useful to for customer retention, sales, marketing, and public relation teams. Transactional email software integrates with additional types of software, such as [CRM](https://www.g2.com/categories/crm-related), [email marketing](https://www.g2.com/categories/email-marketing), and[e-commerce products](https://www.g2.com/categories/e-commerce-platform), to maximize the benefits to your business.

To qualify for inclusion in the Transactional Email category, a product must:

- Provide automated email response tools
- Enable emails to be sent automatically as a result of action-based triggers
- Send customized or personalized emails
- Sync with business software such as e-commerce, social media, or other tools
- Provide administration tools to track emails sent and received, as well as their results

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