Eyad N. Daher

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2026-06-04 11:35:43

Thousands of Failed Emails in Track Delivery? Here Is What I Learned

A few days ago, I opened my cPanel Track Delivery report and saw something alarming. Thousands of failed email deliveries. Random email addresses at my domain that did not exist. All rejected with messages like "No such person at this address" and "Number of failed recipients exceeded. Come back in a few hours."
At the same time, I received suspicious single-use code emails from Microsoft for my Hotmail account. And when I checked my domain on MXToolbox, I discovered I was listed on UCEPROTECTL2 – a blacklist. I am not a spammer. I run a legitimate website with custom PHP and MySQL. So what was happening?
After working through this with my hosting provider, I learned I was the target of a Dictionary Attack (also called a Directory Harvest Attack). In this post, I will share exactly what happened, how I stopped it, and how you can protect your own domain.

SECURITY

2026-02-03 10:16:51

Malicious ChatGPT Extensions: Security Risks and Mitigation

Several ChatGPT-related browser extensions published under “ChatGPT Mods” have been identified as potentially malicious due to excessive permissions, content injection, and lack of transparency.

2025-12-30 09:39:19

The Future of Digital Experiences: AI, Immersive Tech, Sustainability & Voice Interfaces

Digital experiences are evolving faster than ever. Businesses that want to stay competitive must look beyond traditional websites and apps and embrace emerging technologies that focus on personalization, immersion, responsibility, and accessibility. Four trends are shaping this next era: AI personalization, immersive 3D & AR experiences, sustainable web practices, and voice user interfaces (VUIs).

SECURITY

2025-12-28 11:00:54

PHP Security Essentials: How Freelance Developers Can Protect Web Applications

Security is one of the most critical aspects of modern web development. As a freelance PHP developer, delivering secure applications is not just a bonus — it’s a responsibility. From small business websites to large custom platforms, even a minor vulnerability can lead to data leaks, financial loss, and loss of trust.

In this post, we’ll explore essential PHP security practices every freelance developer should follow to protect web applications from common threats.