Enterprise Email Infrastructure Without the Complexity

Reliable transactional email, SMTP delivery and email verification for businesses that depend on email every day.

Email Is Critical Infrastructure

When email is part of your core product or business workflow, reliability, visibility and control matter.

Mission-Critical Delivery

Deliver the messages your customers and internal teams rely on, including account notifications, receipts, alerts and other transactional communication.

Growing Email Volume

Build your email infrastructure around increasing application traffic and growing customer demand.

Multiple Applications

Connect websites, SaaS products, internal systems and customer-facing applications through a consistent email infrastructure.

Operational Visibility

Track delivery activity and integrate email events into your existing systems using webhooks and application workflows.

Built for Enterprise Email Requirements

Enterprise email infrastructure needs more than a way to send messages. It needs authentication, visibility, failure handling and integration with existing systems.

Production-Ready Integration

Connect production applications through REST APIs or standard SMTP without replacing the systems your teams already use.

Controlled Sending

Organize sending domains, credentials and application workflows around the requirements of production email.

Operational Visibility

Connect email events to your applications and internal systems so teams can respond to delivery activity.

Failure Management

Handle bounces, complaints and suppressed recipients without repeatedly attempting delivery to addresses that should no longer receive email.

Everything Your Email Infrastructure Needs

Sendzovo provides the core tools needed to build and operate reliable email workflows at scale.

Transactional Email API

Send application-generated emails through a developer- friendly REST API.

POST https://api.sendzovo.com/v1/emails
Explore Email API →

SMTP Infrastructure

Connect existing applications and systems using standard SMTP without rebuilding your email stack.

Host: smtp.sendzovo.com
Port: 587
TLS: Required
Explore SMTP →

Email Verification

Validate addresses before sending to reduce invalid addresses and unnecessary delivery attempts.

Syntax ✓ MX ✓ Disposable ✓ SMTP ✓
Explore Email Verification →

Webhooks & Events

Connect email activity to your applications and operational systems through event-driven workflows.

delivered → bounced → complained
Explore Webhooks →

Fits Into Your Existing Application Architecture

Introduce Sendzovo without redesigning the applications and infrastructure your engineering teams already operate.

Application → API

Applications can send transactional email directly through the Sendzovo REST API using authenticated requests.

Application → Sendzovo API → Email Delivery

Application → SMTP

Existing software that already supports SMTP can connect to Sendzovo without requiring a custom API integration.

Application → SMTP → Sendzovo → Email Delivery

Events → Your Systems

Send email events back into your application or operational systems through webhooks.

Sendzovo → Webhook → Your Application

Verification → Sending

Validate addresses before sending so applications can make informed decisions about recipient quality.

Address → Verification → Send / Reject

Designed for Reliable Delivery

Build your sending infrastructure around predictable workflows and clear delivery signals.

Domain Authentication

Authenticate your sending domains with the DNS records required for modern email delivery.

SPF ✓ DKIM ✓ DMARC ✓

Suppression Management

Prevent repeated delivery attempts to addresses that should no longer receive messages.

Bounce Handling

Capture delivery failures and use those events to improve application and sending workflows.

Event Visibility

Use email events and webhooks to keep your systems informed about what is happening with your messages.

Security and Control for Production Email

Build email workflows around authenticated domains, controlled credentials and application-level integration.

Domain Authentication

Authenticate the domains used by your applications through the DNS records required for email delivery.

API Authentication

Authenticate API requests so applications can securely communicate with the Sendzovo email infrastructure.

SMTP Security

Connect SMTP-compatible applications using encrypted transport for production email workflows.

Suppression Controls

Prevent messages from being repeatedly sent to recipients that should no longer receive email.

Built for Enterprise Workloads

Use Sendzovo across the systems and workflows that keep your business running.

SaaS Platforms

Power account notifications, product updates, authentication messages and other application-driven communication.

E-commerce

Deliver order confirmations, receipts, shipping notifications and customer account messages.

Business Applications

Connect ERP, CRM, portals and internal applications to dependable transactional email infrastructure.

Customer Platforms

Build customer-facing applications that require reliable and observable email delivery.

Keep Transactional Email Separate From Other Email

Enterprise applications often send different types of email. Separating application-generated messages from other communication helps teams manage their workflows more clearly.

Transactional Email

Send messages triggered by application or customer activity.

  • Account verification
  • Password resets
  • Order confirmations
  • Receipts
  • System notifications

Email Verification

Validate recipient addresses before they enter your sending workflow.

  • Syntax checks
  • Domain and MX checks
  • Disposable address detection
  • SMTP checks
  • Risk identification

Designed for Engineering Teams

Give developers the interfaces they need while keeping email delivery connected to the systems that operate your applications.

REST API

Integrate transactional email directly into application code using authenticated HTTP requests.

SMTP Compatibility

Connect existing software and infrastructure that already supports standard SMTP.

Webhooks

Send delivery events into your own applications and backend workflows.

Documentation

Give engineering teams implementation guidance for integrating Sendzovo into their applications.

From Evaluation to Production

Introduce Sendzovo into your existing email workflow through a clear path from domain setup to production monitoring.

1. Identify Your Sending Workflows

Determine which applications and transactional workflows will use Sendzovo.

2. Authenticate Your Domain

Configure the DNS records required for the domains your applications will use to send email.

3. Connect Your Applications

Integrate through the REST API or connect existing applications through SMTP.

4. Configure Events

Connect email events and webhooks to the systems that need visibility into delivery activity.

5. Validate Production Workflows

Test your integration, recipient handling and application workflows before moving production traffic.

6. Monitor and Maintain

Monitor delivery activity, handle failures and maintain suppression and authentication workflows.

Enterprise Email Infrastructure FAQs

Common questions about integrating Sendzovo into production applications and email workflows.

Can Sendzovo handle transactional email for enterprise applications?

Yes. Sendzovo is designed to provide transactional email infrastructure for applications that send messages such as authentication emails, notifications, receipts and other event-driven communication.

Can existing applications connect through SMTP?

Yes. Applications that support SMTP can connect to Sendzovo using the standard SMTP connection instead of implementing the REST API.

Can applications integrate with Sendzovo through an API?

Yes. Applications can send transactional email through the Sendzovo REST API using authenticated requests.

Can Sendzovo verify email addresses before sending?

Yes. Sendzovo provides email verification checks that can be used before addresses enter your sending workflows.

Can Sendzovo send email events to our applications?

Yes. Webhooks can be used to connect supported email events with your own application and operational workflows.

How does Sendzovo handle bounced or suppressed recipients?

Sendzovo provides bounce and suppression functionality to help prevent repeated sending attempts to recipients that should no longer receive messages.

Do I need to replace my existing SMTP infrastructure?

Not necessarily. Existing SMTP-compatible applications can connect through SMTP, while applications that need deeper integration can use the REST API.

How do I discuss enterprise requirements with Sendzovo?

Contact the Sendzovo team to discuss your integration requirements, sending workflows and production use case.

Ready to Build on Sendzovo?

Talk with our team about your email infrastructure, integration requirements and production workloads.