Welcome 👋
I’m Paul O’Brien, Corporate Resilience Manager and technical infrastructure analyst.
This site explores Operational Resilience at every layer—from organizational strategy to the protocols that keep digital systems running:
- Business Continuity & Crisis Management: Notes on the BCI Good Practice Guidelines (GPG 7.0), CBCI exam preparation, BIA methodologies, and ISO 22301.
- Core Internet Infrastructure: Independent analysis of email authentication (SPF/DKIM/DMARC), zero-access encryption, privacy-first tools, and deliverability.
I test tools independently to make complex digital dependencies legible before an outage forces the issue.
Dive straight in and explore by topic:
Email • Resilience
Documenting my journey toward earning the Certificate of the Business Continuity Institute (CBCI) and exploring BCI Good Practice Guidelines (GPG 7.0).
Mailbox.org is a paid German email provider with strong transport security, custom domains, IMAP support, and PGP/S/MIME options — but the 30-day trial blocks external sending.
Posteo offers privacy-focused email for €1/month. I tested it to see how it handles anonymity, encryption, IMAP, and real-world usability.
Mailfence is a Belgian email provider built around OpenPGP encryption, IMAP compatibility, and a paid-first model. This review looks at how it performs in practice — and who it actually suits in 2026.
Email shouldn’t feel like a relief, but it does. When companies hide behind chatbots and help centres, even simple support becomes a negotiation. Email stays the calmest way to explain a real problem, on your own time.
Yahoo Mail didn’t disappear overnight. It faded from relevance as trust eroded, decisions stalled, and breaches exposed deeper problems. This is the story of how the internet’s most trusted brand lost its place at the centre of email.
From Nigerian prince emails to modern phishing, 419 scams evolved with the internet — exposing how email’s openness can be exploited.
A look at how support actually works at email providers, why it often breaks down at scale, and what good support should look like in practice.
Email used to be the product. Now it’s bundled into productivity suites and buried under notifications. But for many of us, it remains a deliberate craft — slower, clearer and more intentional than the tools that replaced it.
Amazon WorkMail looks basic at first glance — but beneath the minimal interface sits serious infrastructure. A hands-on look at what $4 per user really delivers for small and mid-sized businesses.