Why Your Shared IP’s Reputation Matters More Than You Think

On shared hosting, hundreds of unrelated websites and mail accounts often sit behind the same public IP address. Most of the time this is invisible and harmless — but that shared IP carries a single, collective reputation, and one bad…

Why Some New gTLDs (.xyz, .top) Get Flagged as Spam by Default

Since 2012, ICANN's expanded gTLD program has introduced hundreds of new domain extensions beyond the familiar .com, .org, and .net — .xyz, .top, .club, .online, and many others. Some of these have found genuine, legitimate use. Others have developed a…

Running Your Own Mail Server in 2026: Why Almost Nobody Still Does

Running your own mail server was once a completely ordinary, expected part of running any serious internet presence — today, it's a genuinely niche pursuit that even many experienced system administrators actively avoid, not because the underlying software has gotten…

Reverse DNS (rDNS): Why It Matters for Email Deliverability

Most DNS discussion focuses on forward resolution — looking up a domain name to find its IP address — but the reverse direction, looking up an IP address to find its associated hostname, plays a specific, often overlooked role in…