Transactional email built for your apps
Easy and professional transactional email service for your apps — trigger emails straight from your code and track every send.
See it in action
A clean, developer-friendly dashboard that puts every send, delivery time, and provider metric front and center.








Everything your app needs to send email right
From user registration to password reset to order confirmation — trigger it from your code and see exactly what happened.
Unlimited Templates
Define as many email templates as you need. Each one gets a unique ID you call from your code.
Trigger by Template ID
Once a template is defined, trigger that exact email from your software using the ID the system gives you.
Unlimited Dynamic Variables
Add as many variables as you want inside a template — customer name, order ID, reset links, and more.
Per-Send Delivery Time
See exactly how long each individual email took to arrive — for every single send.
Delivered vs. Not Delivered
Open the reports section and see exactly which emails were delivered and which weren't.
Provider-Based Reports
See delivery time by provider — for example Gmail in 4 seconds, Hotmail in 1 second.
Daily Provider Delivery Breakdown
Track average delivery time to popular providers on a day-by-day basis.
Daily Counts at a Glance
Your home screen shows today's send and open counts the moment you log in.
One API. Reliable delivery, every time.
WDC Fusion Email is a powerful transactional email service that can be easily integrated into your applications. With its API-driven architecture, you can manage all email communications triggered within your software in a fast, reliable, and scalable way.
Define your templates centrally, create unique transactional email IDs for each process, and start sending emails within seconds using your API keys. Automate critical communication flows such as user registrations, password resets, order notifications, and more with ease.
With its advanced reporting capabilities, you can analyze how many requests you've made each day, track open and click rates, and monitor performance through detailed visual reports. WDC Fusion Email provides an end-to-end solution for your transactional email needs with fast integration, high performance, and advanced analytics.
29 widgets for your email operations
Sends, opens, delivery time, provider analytics, and 15-day trends — all on your home screen.
29 gadgets included





























Frequently Asked Questions
Everything you need to know.
What is WDC Fusion Email?+
WDC Fusion Email is a professional transactional email service that lets applications send critical emails such as password resets, order confirmations, invoices, and account alerts through a reliable API.
What is transactional email?+
Transactional email is an automated email triggered by a user action or system event, such as registration, password reset, order confirmation, shipping update, or billing notification.
How is Fusion Email different from Email Marketing?+
Fusion Email is designed for critical one-to-one transactional emails, while Email Marketing is designed for bulk campaigns, newsletters, and promotional communication.
Which emails can I send with Fusion Email?+
You can send user registration confirmations, password reset links, order confirmations, receipts, shipping notifications, invoices, billing emails, account alerts, and custom event emails.
Does Fusion Email provide API-first integration?+
Yes. Fusion Email is built around API-first integration. You can call the API with your API key, template ID, recipient data, and dynamic variables.
How does API-based sending work?+
Your application sends a request to Fusion Email with a template ID and variables. Fusion Email generates the final email content and sends it to the recipient.
Can I create unlimited email templates?+
Yes. You can define unlimited email templates and assign a unique template ID to each transactional process.
What is a template ID?+
A template ID is a unique identifier used by your application to call the correct email template during a transactional email send.
Can I use dynamic variables in templates?+
Yes. You can use dynamic variables for customer name, order number, reset link, invoice amount, tracking number, and any custom data.
Why should templates and variables be managed together?+
Managing templates and variables together makes transactional emails easier to maintain, personalize, test, and scale across different application events.
Does Fusion Email support dedicated IP?+
Yes. Fusion Email uses a dedicated IP assigned to your account so you can build your sender reputation independently.
Why is dedicated IP important for transactional email?+
A dedicated IP helps protect deliverability by keeping your sender reputation separate from other senders and giving you more control over email performance.
Can Fusion Email track delivery time per send?+
Yes. Fusion Email tracks how long each individual email takes to deliver, so you can see whether a message arrived in seconds or took longer.
What is provider-level analytics?+
Provider-level analytics shows average delivery times and performance by recipient provider, such as Gmail, Hotmail, Yahoo, or iCloud.
Can I compare Gmail and Hotmail delivery times?+
Yes. Fusion Email can show average delivery time by provider so you can compare Gmail, Hotmail, Yahoo, iCloud, and other domains.
Can I track delivered and bounced emails?+
Yes. Fusion Email provides visibility into delivered and bounced emails for every transactional send.
Can I track open rates?+
Yes. You can track open rates for today and the last 15 days to understand transactional email engagement.
Can I monitor hourly send volume?+
Yes. Fusion Email includes hourly sent volume widgets so you can monitor how many emails your applications send during the day.
Can I monitor hourly open volume?+
Yes. Fusion Email includes hourly open volume reporting so you can see how recipients interact with emails throughout the day.
Does Fusion Email show invalid email addresses?+
Yes. Fusion Email can show wrong or invalid email address counts to help you improve data quality and reduce failed sends.
Can I see the most popular recipient domains?+
Yes. Fusion Email reports the top recipient domains so you can understand where your transactional emails are being sent most often.
Does Fusion Email include dashboard gadgets?+
Yes. Fusion Email includes 29 ready-made dashboard gadgets for sends, opens, delivery time, delivery status, provider analytics, and trends.
Can I customize my dashboard?+
Yes. You can build an email operations dashboard by adding the gadgets that matter most to your team.
Can Fusion Email be used for SaaS products?+
Yes. SaaS products can use Fusion Email for signups, team invitations, password resets, subscription updates, and security alerts.
Can Fusion Email be used for e-commerce?+
Yes. E-commerce businesses can use Fusion Email for order confirmations, invoices, shipping updates, delivery notifications, and account alerts.
Can Fusion Email be used for marketplaces?+
Yes. Marketplaces can send buyer and seller notifications, order updates, payment confirmations, and account activity alerts with Fusion Email.
Can Fusion Email work with Email Template Manager?+
Yes. Email Template Manager can help teams create and manage reusable responsive templates for Fusion Email workflows.
Can Fusion Email work with Fusion SMS?+
Yes. Fusion Email can be paired with Fusion SMS to support critical communication through both email and SMS channels.
Can Fusion Email work with Transactional WhatsApp?+
Yes. Fusion Email can be paired with Transactional WhatsApp to deliver important application notifications across multiple channels.
Can I request a demo for Fusion Email?+
Yes. You can request a demo to see how API integration, templates, dynamic variables, dedicated IP, delivery time tracking, provider analytics, and dashboard gadgets work together.
Works best alongside these services
Pair this service with these tools for a complete, end-to-end stack.
Fusion SMS
Send SMS instantly, get results immediately! With Fusion SMS, deliver transactional messages seamlessly and monitor every detail.
Explore →Transactional Whatsapp Message
Easily manage WhatsApp messages via API! Transactional WhatsApp Message offers fast integration, detailed reporting, and user-friendly experience for developers.
Explore →Email Marketing Template Manager
Manage your all email template with drag and drop system. Easy and strong unlimited responsive email templates.
Explore →Latest Articles On This Topic
Which Businesses Should Use Fusion Email?
Learn how Fusion Email supports SaaS, e-commerce, marketplace, and subscription businesses with reliable transactional email delivery.
What Is the Difference Between Transactional Email and Email Marketing?
Understand the key differences between transactional email and email marketing, and why separate infrastructure improves reliability and performance.
Which Metrics Should a Transactional Email Dashboard Track?
Track email sends, opens, bounces, delivery times, invalid addresses, and 15-day trends to improve transactional email performance.
How to Understand Email Delivery Time and Provider Analytics
Learn how provider analytics and email delivery time tracking help improve deliverability, inbox placement, and transactional email performance.
Why Dedicated IP Matters for Email Deliverability
Learn how dedicated IPs influence sender reputation, inbox placement, email deliverability, and transactional email reliability.
How to Send Password Reset and Order Confirmation Emails More Reliably
Learn how to deliver password reset and order confirmation emails more reliably with dedicated transactional email workflows, tracking, and analytics.
Why Should Email Templates and Dynamic Variables Be Managed Together?
Learn how email templates and dynamic variables work together to create scalable, personalized, and maintainable transactional email workflows.
How Does API-Based Email Integration Work?
Learn how to send transactional emails with API keys, template IDs, and dynamic variables while improving reliability and scalability.
What Is Transactional Email and Why Is It Critical for Businesses?
Learn what transactional email is, when it is used, and how API-based services like Fusion Email make critical emails reliable.