Real-World Use Cases

Real-World Use Cases#

MailTrigger is solving real problems in production. Here are three real-world examples:

Travel Alerts Without API Hassles#

A family trip to Japan inspired a real-time flight alert system. Instead of integrating with LINE’s API, the script routed alerts through MailTrigger by email — which then pushed LINE notifications instantly.

👉 Read full case

Multi-Domain Email Simplified for Startups#

A founder unified email sending and receiving across three domains with a single inbox, plus delightful LLM-based auto-replies.

👉 Read full case

Automated Internal Alerts for DevOps Teams#

From Sentry to Monit, MailTrigger routes only the right alerts to the right people via Telegram — using Webhooks, WASM, and LLM logic.

👉 Read full case

Customer Support Made Smarter and Faster#

MailTrigger auto-responds to customers and forwards emails internally, with future support for AI-generated replies.

👉 Read full case

Note

Want more real-world examples?

Visit our blog for additional use cases, technical breakdowns, and inspiration:

👉 Explore More on the Blog

Scenarios of Using MailTrigger#

Note

The following are just a few example use cases to spark ideas—MailTrigger supports many more real-world scenarios beyond these.

Real-Time Alerts from DevOps Tools#

Your company uses Jenkins to assist with deployments. When a deployment or build fails, Jenkins by default can only send emails.

However, most developers do not frequently check emails, causing build failure messages to be missed or delayed.

MailTrigger solves this problem:

  • Jenkins continues sending build result messages via email.

  • If you set up routes for LINE and WhatsApp in MailTrigger, these messages can be delivered directly to your messaging apps.

This ensures real-time visibility for the team.

Add New Channels Without Changing Your Code#

Bob is a software developer at Company A. The platform he is developing sends weekly emails to subscribed users—but only via email.

His supervisor now requests support for Discord and WhatsApp message delivery in addition to emails.

Implementing this separately for each platform would be time-consuming.

Instead, Bob uses MailTrigger to:

  • Add routes and rules for LINE and WhatsApp on his domain.

  • Keep using the same email-sending function in his application.

Result: messages are now sent to Email + Discord + WhatsApp, without writing any extra messaging integration logic.

Forward Emails from Gmail to Messaging Apps#

You can use other email services (e.g., Gmail) to forward emails to your MailTrigger mailbox. Once received, MailTrigger will automatically apply the configured routes to forward the content.

Example use case:

  • Bob wants to read “CNN News” emails from his Gmail on WhatsApp.

  • He sets up a Gmail forwarding rule that sends those emails to Bob@example.com.

  • MailTrigger receives them and forwards the content to WhatsApp.

This makes it easier and faster for Bob to read his news updates.

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