Email Security
4 postsAnalysis and architectural guides focused on securing email communication. These articles explore zero-access encryption, protocol security (SPF, DKIM, DMARC), phishing prevention, and privacy trade-offs—providing practical insights for individuals and organisations looking to protect sensitive correspondence.
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Paul O'Brien Out-of-Band Email: A Zero-Access Crisis Hub With Proton When ransomware or an identity outage takes down your email and chat, how do you run the response? This guide covers out-of-band communications, real incident lessons and where Proton for Business fits. Email8 min read 
Paul O'Brien Why Real Emails Go to Spam and How to Fix It (2026) Filters are better than ever, yet invoices, password resets and client replies still land in spam. Here’s why real email gets caught, how to rescue it, and what senders need to fix. Email Security6 min read 
Paul O'Brien Zero-Access Email Encryption: Who Is It Really For? Zero-access email suits lawyers, journalists and privacy-minded teams, but costs you easy recovery and search. Here is who it fits, who should skip it, and the trade-offs. Email Privacy6 min read 
Paul O'Brien Cloudflare Email Routing Review 2026: Free, Now With Sending Cloudflare Email Routing gives your domain free, properly authenticated forwarding, and in 2026 Cloudflare finally added sending. Here’s what’s free, what now costs money, and when a real mailbox is the better call. Cloudflare7 min read 