We at TMNSolutions are incredibly excited to announce the official launch of our newest product: InboxSim!
For years, we’ve been building robust, reliable software solutions, including our popular subscription SaaS, MingleText. Through this experience – and countless others in the developer community – we consistently encountered a common challenge: the often-cumbersome and risky process of testing application-generated emails during development and staging.
The Pain of Email Testing in Development
Every developer knows the drill: your application sends emails for user sign-ups, password resets, notifications, and more. Testing these flows is critical, but sending them to real inboxes in a dev environment brings a host of problems:
- Accidental Sends: The nightmare scenario of a test email reaching a real customer.
- Messy Inboxes: Your personal or team inboxes get flooded with test data.
- Complex Setups: Relying on local Mailhog instances or other solutions can be fragile and hard to scale.
- Visibility Gaps: Difficult to inspect email content, headers, or attachments comprehensively.
- Collaboration Hurdles: Hard to share test email results with QA or other team members easily.
We built InboxSim to directly address these pain points.
Meet InboxSim: Your New Email Sandbox
InboxSim is a developer-focused SMTP/email testing service – a robust email sandbox or inbox simulator. It provides a safe, isolated environment where your applications can send test emails, which are then captured and made available for inspection, all without ever touching a real inbox.
Think of it as your dedicated, private email server for development.
Key Benefits & Features for Your Team:
- Safe Email Capture: Configure your application to send emails to InboxSim’s unique SMTP endpoint. Every email is captured instantly.
- Comprehensive Inspection: Dive deep into your emails. View HTML, plain text, headers, attachments, and even check for spam scores or broken links (features coming soon/roadmap highlight).
- Zero Risk: Guaranteed no test emails will ever escape to real users. Develop and test with complete peace of mind.
- Streamlined Workflow: Replace complex local setups with a simple, cloud-based solution accessible to your whole team.
- Simple Setup: Get started in minutes with clear SMTP credentials and setup guides for popular frameworks.
- Professional & Reliable: Built with the same commitment to reliability and performance that you expect from TMNSolutions products like MingleText.
Who is InboxSim For?
- Developers: Quickly test email functionality within your applications.
- QA Teams: Verify email content and delivery without creating dummy accounts or flooding test inboxes.
- Small SaaS Companies: Ensure your onboarding, notification, and marketing emails look perfect before launch.
- Agencies: Efficiently test client applications and demonstrate email functionality.
Our Commitment: Simple, Reliable, Effective
As a founder operating MingleText, I’ve always prioritized building pragmatic tools that solve real problems efficiently. InboxSim embodies this philosophy. Our goal isn’t to be everything to everyone, but to be an incredibly reliable, straightforward, and cost-effective solution for essential email testing. We believe in providing a clear, modern experience with controlled costs, so you can focus on building amazing products.
The clean, professional, and modern UI, with its distinctive cyan accents, is designed for clarity and ease of use, making your testing workflow as smooth as possible.
Get Started with InboxSim Today!
We invite you to explore InboxSim and experience how it can simplify your development and QA processes. We offer flexible plans designed to fit teams of all sizes, and getting started is quick and easy.
Ready to stop worrying about test emails and start shipping with confidence?
👉 Visit inboxsim.com to learn more and sign up for free!
We’re incredibly excited about InboxSim and believe it will become an indispensable tool in your development toolkit. We look forward to hearing your feedback and continuing to evolve the product to meet your needs.
Sincerely,
Nhut Tran
Founder, TMNSolutions


