Mailgun vs SMTP2GO

Brevo

SendGrid

Mailchimp

Brevo is a CRM and email marketing solution that helps businesses run multi-channel marketing campaigns across email, WhatsApp, SMS, web push, and Facebook ads. Teams can trigger transactional emails, SMS, and WhatsApp notifications over Brevo SMTP and APIs.

SendGrid is a solution that provides a cloud-based email infrastructure to help relieve businesses of the cost and complexity of maintaining custom email systems. It provides email delivery, scalability and real-time analytics along with APIs. The platform also offers SMTP service, email validation, deliverability insights, and dynamic templates, while supporting multiple programming languages including Node.js, Python, and Java.

Mailchimp is an email and SMS marketing platform that combines artificial intelligence with marketing automation capabilities. The platform features a drag-and-drop builder, content creation tools, and audience management functions to help businesses design and distribute marketing campaigns across multiple channels.

No serious SaaS can rely on a provider that pulls the plug without notice.

Qa engineer

It takes a bit of navigation to locate specific details when troubleshooting.

Mailgun is an email automation service offering a complete cloud-based email service for sending, receiving & tracking email sent through your websites & apps

A/B Testing

Archiving & Retention

Autoresponders

Bulk Email Verification

Catch-all Server Detection

Data Recovery

Disposable Email Detection

Domain Check

Email Campaign Management

Email Marketing

Email Monitoring

Email Tracking

Event Triggered Actions

List Management

Message Personalization

Monitoring

Personalization

Preview Functionality

Queue Management

Reporting/Analytics

Routing

Simple Mail Transfer Protocol (SMTP)

Single Email Verification

Spam Blocker

Spam Detection

Subscriber Management

Syntax Check

Template Management

Whitelisting/Blacklisting

Reviewers appreciate Mailgun’s generous free tier and advanced features included in the basic plan. Some reviewers feel paid plans are expensive, and they indicate recent changes and unexpected charges have reduced perceived value for smaller organizations.

Value for money

By industry, Mailgun reviewers are most commonly professionals in information technology and services (23%). The most frequent use case for Mailgun cited by reviewers is transactional email (67% of reviewers).

Mailgun

Web-based

Mailjet

Amazon SES

Constant Contact

Gmail

Yahoo Mail

MailerLite

Netcore Email API

GetResponse

Microsoft Outlook

Free

Basic

Foundation

Scale

Higher costs and plan limitations

they keep billing you every month (over 600$ at this stage) even though your subscription mentions that you're at 0$/month. When you're trying to reach out to the support, they close our tickets without even answering, ghosting.

IT Specialist

The opening price is pretty high for an account with any sort of features, which makes it tough to justify using their service for a small project.

53% of reviewers feel negative about Mailgun’s pricing. Some users find the entry-level pricing high and say advanced features are locked behind expensive plans, making it difficult for small projects or organizations with limited budgets. Reviewers indicate that recent changes to the free plan have reduced its value, with some features now paywalled. They report that dedicated IP addresses and premium support are prohibitively expensive, and several users compare Mailgun’s costs unfavorably to competitors. Some reviewers mention unexpected charges or billing issues as additional frustrations.

Flexible and developer-friendly API

97% of reviewers feel positive about Mailgun’s API. Reviewers appreciate that the API is simple to implement, well-documented, and supports multiple programming languages, making integration with various platforms and applications straightforward. Some users say the API’s reliability and flexibility enable them to automate email workflows and reduce manual workload. They find the API’s compatibility with popular frameworks and its robust webhook support particularly useful for transactional email needs. Reviewers indicate that the ease of setup and abundance of community resources help developers quickly add email functionality to their software.

Reliable high-volume email delivery

79% of reviewers feel positive about Mailgun’s email sending capabilities. Some users report that Mailgun handles large volumes of transactional and marketing emails efficiently, with strong deliverability and minimal setup. Reviewers appreciate the generous free tier, which allows startups and small businesses to send thousands of emails monthly at no cost. They say the platform’s scalability and integration options make it suitable for a variety of applications, from newsletters to automated notifications. Users think Mailgun’s reliability and ease of use are key benefits for managing business communications.

DevOPS

Pricing Complexity: While free tier is generous for low volume, the cost structure (per‑sent + per‑recipient, dedicated IP fees, and extra features) quickly adds up, making it hard to predict expenses without careful budgeting.

Steep Learning Curve: The sheer breadth of options (dedicated IPs, suppression lists, custom routing) can overwhelm newcomers; the UI feels more like a developer console than a user‑friendly dashboard.

Limited Built‑in Email Templates: Unlike some competitors, Mailgun doesn’t offer a visual template editor; you need to craft HTML yourself or use third‑party tools.

Software Engineer

They provide backward compatibility with their old API to reduce downtime during upgrades, especially for legacy systems where upgrading to the latest library or source code is not feasible.

Manager

Need your own custom domain which is understandable for the sake of potential email spam which degrades the credibility of the platform.

It’s best suited when you’re already committed to building custom email workflows rather than relying on a “set‑and‑forget” solution.

Ability to send out email blasts to clients on the regular basis instead of one at a time.

Managing Partner

I ran into some issues with when switched login with Sinch, but other than that we have reliable mail delivery and some tools to analyze issues.

Peer support specialist, drug and alcohol counselor

Had a good experience if I had to pick a couple things I disliked about mail gun it would be the learning curve and email management was really confusing

As a QA, I need to perform different validations related to email sending with Mailgun, and this is really easy to do, even though it was my first time using this type of platform.

Their automated system falsely flagged my SaaS, disabling all transactional emails without warning.

I didn't like how mailgun disable our account (with over 25 active applications/domains and hundreds of users) and didn't tell use why for over 3 days.

Mailgun is a powerful email delivery service that excels in reliability and ease of integration, particularly with platforms like WordPress.

I'm more than satisfied with mailgun as platform, I've used easily a dozen, and It's the one I've stayed with to integrate with software or other platfors for sure.

Developer

Historically, the shared IPs has sometimes been blacklisted (was quite a while since last).

Application Support Engineer

We noticed that some of them are not available in the documentation.

I’ve been impressed by how much functionality is included in the basic plan, offering features like tracking and analytics that are often premium in other services.

Customer marketing success manager

Have been using mailgun for almost 3 years and has helped solve a very common Wordpress SMTP problem of email delivery.

Owner

If you want to have a reliable email sending and receiving platform then Mailgun does the job.

This caused immediate chaos for my SaaS, as transactional emails are mission-critical.

I had a great overall experience with Mailgun, but the dashboard analytics could use some improvement.

Technical Support Engineer

I'm part of an internal technical support branch that helps team members with mail delivery inquiries and other requirements.

It took 24 hours for customer support to respond and tell us there was a security problem with our account, but we were left on our own to figure out what was going on and how to solve it.

Very easy to use, and allows me to provide login verification, password retrieval, etc for the users of the site.

Engineer

Pricing can increase rapidly once you exceed small volumes or require advanced features.

It can be confusing to set up the sending domains correctly when you don’t have much knowledge about how it works.

Admin Lead

Mailgun's API seamlessly integrates with our relationship management software, allowing us to automate communication, reduce workload, and increase impact.

It’s not free, and costs can add up as volume grows.

Head of Customer Experience and Digital

It is a simple and cost effective option for reducing the rate in which emails end up in junk

I’ve also seen occasional minor UI slowdowns.

Often it defaults to the US server which can cause confusion when trying to find something.

Founder/Owner

API mailing+ driver for laravel+ triggers / webhooks+ price/value+ easy setup and integration+ easy deployment on new domains+ fixed IP address if needed+ good support and best practise+ reliable

Overall performance of the tool when searching for messages sent by our internal software solutions.

For anyone looking for a no-fuss email solution with great value in its entry-level plan, Mailgun is a fantastic option.

Marketing and Digital Projects

More visibility on automated changes (such as automatic suppressions)

Marketing Director

I use mailgun as mail services for a few cuatomers that use High Level

Lead Engineer and General Manager

We have recommended them to many clients and friends because of the ease of use, reasonable costs, and much better quality of service than competitors.

Some settings are difficult to find, making configuration a bit frustrating at times.

Co-Founder

Some of the user and account management interfaces were a big challenging to use and navigate.

Fullstack web developer

I have never used an easier to setup and higher quality service.

I use Mailgun with High Level And the best part is the easy way to sync them both

It is a developer-friendly API & solid documentation.

Delivery is affected and is no solution to use.

Easy to use API allows for addition of email functionality in all of our apps.

 CEO

Despite a paid plan and all the proofs the Mailgun staff could need, they restricted heavily our ability to send mails to our users through SMTP.

Web Developer

It offers well defined documentation and APIs that are easy to integrate

Director

Inbound marketing specialist

The interface can feel complex for beginners.

Email Sending

Pricing

User Interface

Dashboard

Account Management

Training and Learning Curve

Email Validation

Customer Support

Small Business

Large Enterprises

Freelancers

Mid-size Business

Reviewers appreciate Mailgun’s generous free tier and the inclusion of advanced features like tracking and analytics in the basic plan, which they say are often premium elsewhere. Users think the pay-as-you-go model and affordable entry-level pricing offer good value, especially for small projects or those starting out. Some reviewers feel, however, that Mailgun’s paid plans are more expensive than competitors, with advanced features and dedicated IPs locked behind higher-priced tiers. They indicate that recent changes to the free plan and unexpected charges have reduced perceived value, and some users report difficulty justifying costs for smaller organizations.

Sinch

System Administrator

Support helped me pinpoint the cause of our only glitch within just a few hours.

Founder and Lead Technologist

Every time I’ve reached out, they’ve responded fast and with actual helpful info — not canned replies or copy/paste answers.

SMTP2GO is a cloud-based email management solution which helps businesses track emails and generate visual reports. Key features include data management, email monitoring, blacklisting, email authentication, and an API.

Access Controls/Permissions

Activity Dashboard

Activity Tracking

Allow/Block List

Audit Trail

Automatic Backup

Backup and Recovery

Click Tracking

Customizable Fields

Customizable Templates

Data Import/Export

Data Retention Management

Email Management

Email Templates

Encryption

File Transfer

Multiple User Accounts

Real-Time Analytics

Real-Time Data

Real-Time Reporting

Reporting & Statistics

Response Management

Scheduled/Automated Reports

Search/Filter

Secure Data Storage

Secure Login

SMS Messaging

SSL Security

Team Management

Third-Party Integrations

Two-Factor Authentication

Unsubscribe Database

User Management

Most reviewers indicate that SMTP2GO offers well-priced, cost-effective plans and they appreciate the balance between price and features. Some reviewers feel the plans can be costly for personal use and wish for more flexibility or lower prices.

By industry, SMTP2GO reviewers are most commonly professionals in information technology and services (16%). The most frequent use case for SMTP2GO cited by reviewers is transactional email (69% of reviewers).

Proprietary

SMTP2GO

Starter

 Professional

Administrator

We needed to be able to send Text Messages across various Internet Providers, AT&T, Verizon, T-Mobile, Cricket, Etc.. To make this feature work we needed the ability to have our emails converted to the "Text-Messaging" protocol and SMTP2GO provided this service.

IT Manager

Security is a notable strength — SMTP2GO supports SPF and DKIM (when your domain is verified) and helps you implement DMARC via DNS.

Manager, System Operations

SMTP2go is our go-to any time we need an easy to implement SMTP solution for things like multi-function devices or scripting & automation, and it has not once failed, not even a hiccup.

Mailgun vs SMTP2GO Comparison (2026)

Mailgun

SMTP2GO

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives