Connect Globally,
Deliver Every Email Precisely
uSpeedo provides enterprise-grade email delivery services for global businesses. Through intelligent routing and dynamic warm-up technology, we break through Gmail, Yahoo, and Outlook blocking to ensure business growth.
Trusted by Leading Enterprises
Deliverability Rate Comparison
Solving Core Pain Points of International Email Delivery
Landing in Spam
Emails frequently end up in spam folders with extremely low open rates, affecting marketing effectiveness and brand image
Domain/IP Blacklisted
IP and domain reputation issues cause emails to be blocked, preventing normal delivery to target inboxes
Unclear Delivery Status
Lack of real-time feedback and monitoring makes it impossible to know if emails were successfully delivered, affecting business decisions
Not Just Sending,But Smart Delivery
We provide full-link solutions from content construction, strategy formulation to delivery optimization.
Rich Templates + Visual Editor
Make marketing emails more professional, with higher open rates.
- 50+ Scenario Templates (Marketing/E-commerce/Retention/Notification)
- Drag-and-Drop Editor, No Designer Needed
- Spam Word, Subject Line Real-Time Detection
- Supports Variables, Dynamic Content, A/B Testing
“Generate a high-conversion marketing email in 3 minutes.”
Delivery Strategy + Real-Time Reports
Make every email smarter, more controllable, and more efficient.
- Global Intelligent Routing (Independently Optimized for US/Europe/Latin America)
- Delivery Link Monitoring (Delivered, Opened, Clicked, Bounced)
- Intelligent Explanation of Bounce Reasons
- Activity Conversion Funnel Analysis
“Using data to tell you "why it's not delivered" and provide solutions.”
Smart Warm-up
The core secret to high deliverability.
- Automated IP/Domain Warm-up Plan
- Daily Sending Volume Intelligent Step-up
- Reputation Curve Visual Monitoring
- Gmail/Yahoo Anti-spam Model Adaptation
“Let you have stable sending reputation from day one, no longer blocked.”
Rapid Access API/SMTP
Developer-friendly integration experience.
- REST API/SMTP/SDK
- 5 minutes to complete test sending
- Out-of-the-box multi-language sample code
- Webhooks real-time callback
“The integration method favored by engineers, quickly verify business processes.”
Write Code, Not Maintain Infrastructure
API-friendly, easy to integrate, supports multiple SDKs, letting you focus on business logic rather than infrastructure maintenance
import { uSpeedo } from 'uspeedo-sdk';
const client = new uSpeedo({
publicKey: 'pk_live_8e92a...',
privateKey: 'sk_live_3c21f...'
});
await client.email.send({
to: 'user@example.com',
subject: 'Welcome to uSpeedo',
html: '<h1>Hello World</h1>'
});Proven by Numbers
See how your peers achieve growth with uSpeedo
Well-known Cross-border E-commerce
E-commerceGmail/Yahoo spam rate reaches 40%, poor promotional campaign results.
Delivery rate increased to 96.3%, email click-through rate increased by 52%, Black Friday sales doubled.
SaaS Product Activation
SaaSNew domain sending leads to many bounces, users not receiving verification codes.
After 14 days of warm-up, activation email success rate stabilized from 70% to over 95%.
Large APP Marketing
Mobile AppMonthly send volume 8 million, traditional service providers are expensive and provide poor service.
Costs reduced by 32% after switching, open rate increased by 38%, API response time < 200ms.
“We switched three service providers before, only this one truly solved the delivery problem. Our current ROI is 3 times what it used to be.”
— CTO, Unicorn Overseas Enterprise
Frequently Asked Questions
Everything you need to know about getting started with uSpeedo Email Service.
