Mimecast is a cloud email gateway (SEG) that intercepts all traffic via MX redirection. Full guide: architecture, SPF/DKIM/DMARC setup, Proofpoint/Abnormal Security comparison, and DNS audit.
Complete guide to obtaining and deploying a VMC or CMC certificate: CA comparison, pricing, prerequisites and free hosting.
Every email carries an invisible logbook. This guide teaches you how to extract it, read it field by field, and diagnose deliverability or security issues.
Your email gateway blocks 99% of threats. But the 1% that gets through is what matters. Here are the 10 header indicators that most filters ignore.
One in five emails never reaches the inbox. This guide shows you how to test your email deliverability before sending and fix every issue.
The 24 to 48 hour myth is wrong. The actual delay depends on TTL, and you can control it.
t.ly, Is.gd, Goo.su: URL shorteners fuel phishing, malware, and security filter evasion. Learn the exploitation techniques and how to verify every link before you click.
