Industry
2 min read
IP Blacklisting: A Persistent Problem for Hosting Providers in 2025 Even in 2025, IP blacklisting remains one of the most common—and costly—issues facing web hosting providers. Every day, hosting companies …
Read post: IP Blacklisting Still Threatens Hosting Providers in 2025 — Here’s How to Stop It
Industry
2 min read
For startups, rapid growth is the dream. But as your user base expands and email volume surges, your email infrastructure can quickly become a bottleneck. Sending transactional emails, onboarding new …
Read post: Scaling Your Startup: How to Ensure Your Email Infrastructure Can Keep Up with Growth
Industry
3 min read
In the world of SaaS, where customer experience reigns supreme, transactional emails are the unsung heroes working tirelessly behind the scenes. These automated emails, triggered by specific user actions or …
Read post: The Essential Guide to Transactional Emails for SaaS CompaniesIndustry
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Emails are vital for modern businesses to connect with customers, send critical updates, and drive conversions. Yet, ensuring these emails successfully reach the inbox can sometimes feel like navigating a …
Read post: Troubleshooting Email Deliverability: Common Issues and How to Fix ThemIndustry
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In early 2023, a significant privacy lapse was discovered within Uber’s platform: sensitive user and trip data had been indexed by Google, exposing customer names, pick-up/drop-off coordinates, and driver details …
Read post: Uber’s Leaky Backend: How Trip Data Ended Up on Google—and Why It Still MattersIndustry
2 min read
In the early days of the COVID-19 pandemic, Zoom emerged as the unlikely poster child for remote communication, riding a wave of global lockdowns and remote work mandates. But what …
Read post: Email Traffic Trends Reflect the Ongoing Shift in Work and CommunicationIndustry
2 min read
In 2020, COVID-19 disrupted nearly every aspect of life, including the world of email. At the time, MailChannels observed a sharp increase in global email traffic—especially transactional and outbound messages—as …
Read post: How Global Crises Impact Email Traffic—and What Hosting Providers Can Do About It
Industry
3 min read
What bounce codes reveal about your email delivery—and how to interpret them. When your email fails to deliver, the server doesn’t just reject it—it tells you why. That reason is …
Read post: Understanding SMTP Response CodesIndustry
3 min read
Introduction Spam filtering is a critical defense against outbound abuse, phishing, and account compromise. But under the General Data Protection Regulation (GDPR), any operation involving personal data must have a …
Read post: Is Consent Required for Spam Filtering? A GDPR Perspective for Hosts and ESPsIndustry
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Introduction Filtering outbound email is essential for stopping spam, phishing, and abuse. But if your filtering practices inspect message content or metadata, are you violating your users’ privacy? In a …
Read post: How to Filter Emails Without Violating Privacy: A GDPR-Safe Approach for Hosts and ESPsSubscribe to the MailChannels Blog to receive new blog posts in your inbox.