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SMTP Relay vs. SMTP Server: What’s the Difference?

If you’ve ever configured email infrastructure, you’ve likely come across terms like SMTP server and SMTP relay. While they sound similar, they serve very different purposes—and confusing them can lead...

SMTP Relay Vs SMTP Server

What Is an SMTP Relay?

Everything You Need to Know About How Email Gets Delivered Reliably When you click “send” on an email, what really happens behind the scenes? If you’re a hosting provider, SaaS...

What Is An SMTP Relay

How to Secure Outbound Email Flow

When it comes to email infrastructure, most of the attention goes to inbound filtering. But if you’re running a hosting platform, ESP, or SaaS product, your outbound email flow is...

How To Secure Outbound Email Flow

Why Shared Hosting Is Prone to Spam Abuse

Shared hosting is a cost-effective, scalable solution for millions of websites and email users. But with affordability comes risk—shared hosting environments are a frequent target of spam abuse. One compromised...

Why Shared Hosting Is Prone To Spam Abuse

What Is Outbound Spam?

When most people hear the word “spam,” they think of unwanted emails landing in their inbox. But for hosting providers, ESPs, and SaaS platforms, there’s a more dangerous side of...

What Is Outbound Spam

How MailChannels Filters Outbound Spam Automatically

Spam doesn’t just harm your inbox placement—it destroys your IP reputation, triggers blocklisting, and can take down email service for every customer sharing the same server. For hosting providers, SaaS...

How MailChannels Filters Outbound Spam Automatically

Detecting and Blocking Compromised Accounts

One compromised email account can do more than just send spam—it can tarnish your sender reputation, damage your IP trustworthiness, and trigger blacklisting that affects thousands of users. If you’re...

Detecting And Blocking Compromised Accounts

Best Practices to Prevent Outbound Spam

Outbound spam is one of the leading causes of poor email deliverability, blacklisted IPs, and frustrated customers. Whether you’re a web host, email provider, or SaaS platform, protecting your infrastructure...

Best Practices To Prevent Outbound Spam

Using AI & Heuristics for Spam Detection and Prevention

Email spam is more sophisticated than ever—and traditional filters aren’t enough. Today’s email infrastructure needs real-time, intelligent protection that can adapt to evolving threats. That’s why leading providers are turning...

Using AI & Heuristics For Spam Detection And Prevention

IP Pool Management Strategies for ESPs: How to Improve Deliverability at Scale

For email service providers (ESPs), managing outbound email at scale is all about deliverability. And at the heart of deliverability is one critical factor: IP reputation. That’s why smart IP...

IP Pool Management Strategies For ESPs

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