Skip to content

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...

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...

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...

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...

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...

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...

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...

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...

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...

Best Practices for Designing Effective Transactional Emails

Transactional email stands as a vital touchstone between businesses and their customers. Unlike promotional emails, which cast a wide net to catch as many leads as possible, transactional emails are...

Best Practices For Designing Effective Transactional Emails

Stay updated with MailChannels

Subscribe to the MailChannels Blog to receive new blog posts in your inbox.

Join our team

MailChannels secure and deliver email for more domains than anyone else.

View careers

Contact us

Have any feedback or questions? We’d like to hear from you.

Contact us

Cut your support tickets and make customers happier