Transactional Email for Your Application

Send the emails your users expect when something happens in your application. Use Sendzovo to deliver account messages, notifications, receipts, password resets and other event-driven email through API or SMTP.

What Is Transactional Email?

Transactional email is typically triggered by an action, event or request associated with an individual user. Unlike promotional broadcasts, these messages are usually specific to the recipient and connected to something happening in your application.

User-Triggered

Send an email when a user creates an account, resets a password, places an order or performs another action in your application.

Event-Driven

Notify users when something important happens, such as a shipment being dispatched or a payment failing.

Personalized

Transactional messages commonly contain information specific to the recipient, account or event.

Expected

These messages are generally part of the experience users expect from an application or service.

Why Send Transactional Email With Sendzovo?

Your application depends on email to keep users informed. Sendzovo gives your development team the infrastructure, integrations and tools needed to build reliable email workflows without managing an email delivery system from scratch.

Built for Application Email

Send password resets, account notifications, receipts, verification emails and other messages directly from your application's workflows.

API or SMTP

Use a modern HTTP API for new integrations or SMTP when you already have an application or framework configured for standard email delivery.

Reusable Templates

Keep transactional email content organized with reusable templates and dynamic values supplied by your application.

Delivery Visibility

Keep track of supported email events and connect delivery activity back to your application through webhooks.

Domain Authentication

Authenticate your sending domain and configure the appropriate email authentication records before sending production traffic.

Suppression Controls

Help prevent repeated delivery attempts to recipients whose addresses should no longer receive certain emails.

Developer-Friendly Integration

Integrate email into your existing application stack without building and maintaining your own complete email delivery infrastructure.

One Email Platform

Bring transactional email, SMTP, email APIs, verification, templates and delivery workflows together under one platform.

Who Uses Transactional Email?

Transactional email is useful for applications and businesses that need to communicate important events, account activity and operational updates to individual users.

SaaS Applications

Send account verification, password resets, billing notifications, product alerts and other application messages to your users.

Ecommerce Applications

Send order confirmations, receipts, payment updates, shipping notifications and other purchase-related messages.

Marketplaces

Notify buyers, sellers and other users about account activity, transactions and important marketplace events.

Web & Mobile Applications

Connect application events to email workflows through an API or SMTP integration.

Agencies & Development Teams

Integrate transactional email into client applications without building a complete email delivery system from scratch.

Online Platforms

Deliver account, security, notification and operational messages as part of your platform's user experience.

Types of Transactional Email

Transactional email can support many different application workflows. Send the right message when the right event occurs.

Account & Authentication

Welcome emails, email verification, password resets, login alerts and account security notifications.

Orders & Purchases

Order confirmations, receipts, invoices, payment confirmations and purchase-related notifications.

Payments

Notify customers about successful payments, failed payments, refunds and other payment events.

Shipping & Delivery

Keep customers informed about fulfillment, shipment status and delivery updates.

Product Notifications

Notify users about important activity, changes, completed actions and application events.

Security Alerts

Send notifications about password changes, suspicious activity and other important account events.

Subscription Emails

Notify customers about subscription changes, renewals, billing events and account status.

System Notifications

Deliver application-generated notifications when an important event requires the user's attention.

From Application Event to Delivered Email

Connect your application's events to an email workflow that handles sending and delivery activity.

Application Event
  ↓
Create Email
  ↓
Select Template
  ↓
Add Recipient & Data
  ↓
Send via API / SMTP
  ↓
Sendzovo
  ↓
Delivery Processing
  ↓
Email Event
  ↓
Webhook → Your Application

Everything Around the Send Matters

Sending an email is only one part of transactional email. Your application also needs authentication, templates, delivery visibility and ways to respond to email events.

Domain Authentication

Configure your sending domain with the appropriate authentication records before sending production email.

Email Templates

Build reusable email content while keeping application logic separate from message presentation.

Delivery Events

Monitor supported email events so your application can respond to delivery activity.

Webhooks

Send supported delivery events back to your application so you can update records and automate workflows.

Suppressions

Manage addresses that should no longer receive certain messages and reduce unnecessary delivery attempts.

Email Verification

Validate collected email addresses as part of your broader email workflow.

Explore Our Email Features

Build your email infrastructure with the Sendzovo tools designed for application sending, delivery and email management.

Email API

Send transactional email directly from your application using a developer-friendly HTTP API.

Explore Email API

SMTP Service

Connect existing applications and frameworks using standard SMTP.

Explore SMTP

Transactional Email

Build application-triggered email workflows for important user and system events.

Explore Transactional Email

Email Delivery

Understand the delivery workflow surrounding your application's email.

Explore Email Delivery

Email Templates

Create reusable transactional email content with application-specific data.

Explore Templates

Webhooks

Receive supported email events and connect them back to your application's workflows.

Explore Webhooks

Email Verification

Verify email addresses before they become part of your sending workflow.

Explore Verification

Bulk Email

Build permission-based campaigns for newsletters, announcements and other audience-wide email.

Explore Bulk Email

Transactional Email FAQs

What is transactional email?

Transactional email is generally triggered by a specific user action, application event or request. Examples include password resets, receipts, verification emails and account notifications.

How is transactional email different from bulk email?

Transactional email is normally connected to an individual user or application event, while bulk email is generally sent to a broader audience for newsletters, announcements or marketing campaigns.

Can I send transactional email through SMTP?

Yes. Sendzovo SMTP can be used by applications and frameworks that support standard SMTP configuration.

Can I send transactional email through an API?

Yes. Applications can integrate with the Sendzovo Email API to trigger transactional messages from application workflows.

Can I use templates for transactional email?

Yes. Reusable templates can help keep transactional messages consistent while allowing your application to provide dynamic recipient and event data.

Can my application receive email events?

Sendzovo webhooks can be used to connect supported email events back to your application.

Can I send password reset and verification emails with Sendzovo?

Yes. Sendzovo can be used to send application-triggered messages such as password resets, email verification, welcome emails and account notifications.

What types of transactional email can I send?

You can use transactional email for account authentication, password resets, order confirmations, receipts, invoices, payment notifications, shipping updates, security alerts and other application-triggered messages.

Do I need to use SMTP if my application supports an API?

No. You can choose the integration method that fits your application. Use the Sendzovo Email API for direct HTTP integration or SMTP for applications and frameworks that already support standard SMTP.

Can I use my own sending domain?

Yes. Your sending domain should be authenticated and configured with the required email authentication records before sending production email.

Can I receive delivery events in my application?

Yes. Sendzovo webhooks can send supported email events back to your application so you can update records and trigger application workflows.

Should transactional and marketing email be sent separately?

They should generally be treated as separate email streams because they serve different purposes. Transactional email is associated with application events, while marketing or broadcast email is generally sent to a broader audience.

Send the Emails Your Product Depends On

From account creation to payment notifications, Sendzovo gives your application a dedicated way to send important operational email.

Welcome Emails

Welcome new users after they create an account and begin using your application.

Password Resets

Send password reset links and account recovery instructions when users need access to their accounts.

Email Verification

Send verification messages that help users confirm their email address during account registration.

Order Confirmations

Confirm purchases, orders and other customer actions with application-triggered email.

Receipts & Invoices

Deliver receipts, invoices and payment-related information to individual customers.

Account Notifications

Keep users informed about important account and application activity.

Shipping Updates

Notify customers about order fulfillment, shipment and delivery events.

Payment Notifications

Send payment confirmations, failures and other transaction-related notifications.

Send Through API or SMTP

Choose the integration method that fits your application. Build directly with the Email API or connect an existing SMTP-compatible application.

Email API

Build a direct HTTP integration with Sendzovo and trigger transactional messages from your application logic.

POST https://api.sendzovo.com/v1/emails

Authorization: Bearer em_live_xxxxxxxxx
Content-Type: application/json

SMTP

Connect existing applications and frameworks that already support SMTP without rebuilding your mail integration.

Host: smtp.sendzovo.com
Port: 587
Encryption: TLS

Connect Email to Your Application Events

Transactional email becomes part of your application's event flow rather than a separate manual process.

User Action
  ↓
Application Event
  ↓
Select Email Template
  ↓
Add Recipient & Variables
  ↓
Send via API / SMTP
  ↓
Sendzovo
  ↓
Delivery Event
  ↓
Webhook → Your Application

Use Reusable Email Templates

Keep your transactional email content consistent by using reusable templates with dynamic values supplied by your application.

Reusable Content

Avoid rebuilding the same email structure every time your application sends a message.

Dynamic Data

Insert application-specific values such as names, order numbers, verification links and other message data.

Consistent Experience

Keep important transactional messages consistent across different application workflows.

Separate Content From Logic

Keep email presentation separate from the application code responsible for triggering the message.

Verify Addresses Before You Send

Email verification can be part of your broader sending workflow when you collect addresses through forms, registrations or other application processes.

Collect Email Address
  ↓
Verify Address
  ↓
Evaluate Result
  ↓
Continue Application Workflow
  ↓
Send Transactional Email

Bring Email Events Back Into Your Application

Your application can use webhooks to receive supported email events and update its own records or workflows.

Application
  ↓
Send Transactional Email
  ↓
Sendzovo
  ↓
Email Event
  ↓
Webhook
  ↓
Your Application

Transactional Email Is Different From Marketing Email

Transactional messages are generally tied to a specific user or application event. Newsletters, promotions and other broad campaigns are different types of email and should be handled separately.

Transactional

Password resets, account notifications, receipts, order confirmations and other messages triggered by application activity.

Broadcast & Marketing

Newsletters, promotions, product announcements and other messages sent broadly to an audience.

Keeping different categories of email separate is an important part of responsible email infrastructure and can help protect the reputation of more critical application traffic.

Designed for Developers

Sendzovo gives developers multiple ways to integrate transactional email without requiring them to build and operate their own email delivery infrastructure.

REST API

Send messages directly from your application using Sendzovo's HTTP API.

SMTP

Connect existing frameworks and applications through standard SMTP configuration.

Webhooks

Connect supported email events back to your application and automate your own workflows.

Documentation

Use the Sendzovo documentation to integrate sending into your application and development workflow.

Before Sending Transactional Email

Configure the important parts of your email infrastructure before sending production traffic through Sendzovo.

Authenticate Your Domain

Configure the required email authentication records for your sending domain before sending production messages.

Configure Your Integration

Connect your application using the Sendzovo Email API or configure your existing application for SMTP.

Prepare Your Templates

Create the transactional messages your application needs, including password resets, notifications, receipts and other event-driven emails.

Configure Webhooks

Connect supported email events back to your application when you need delivery activity to update your own records or workflows.

Start Sending Transactional Email

Connect Sendzovo to your application and start sending the emails your users depend on.