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.

A close-up photograph of Paul O'Brien's workstation, showing open books on Business Continuity (CBCI) alongside a notebook and laptop displaying resilience insights.

Journey to the CBCI: Master Business Continuity & Resilience

Documenting my journey toward earning the Certificate of the Business Continuity Institute (CBCI) and exploring BCI Good Practice Guidelines (GPG 7.0).

August 8, 2026 · 2 min
Mailbox.org Review 2026: Secure, Paid Email Done Properly

Mailbox.org Review 2026: Secure, Paid Email Done Properly

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.

March 16, 2026 · 11 min
Posteo Review 2026: Privacy for €1/month

Posteo Review 2026: Privacy for €1/month

Posteo offers privacy-focused email for €1/month. I tested it to see how it handles anonymity, encryption, IMAP, and real-world usability.

February 25, 2026 · 14 min
Mailfence Review 2026: Privacy Without the Hype?

Mailfence Review 2026: Privacy Without the Hype?

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.

February 22, 2026 · 11 min
Should Businesses Hide Their Email Address?

Should Businesses Hide Their Email Address?

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.

February 20, 2026 · 8 min
When Yahoo Was the Internet — and Why Yahoo Mail Lost Our Trust

When Yahoo Was the Internet — and Why Yahoo Mail Lost Our Trust

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.

February 20, 2026 · 7 min
Somewhere out there, a Nigerian oil minister still owes me $26 million

Somewhere out there, a Nigerian oil minister still owes me $26 million

From Nigerian prince emails to modern phishing, 419 scams evolved with the internet — exposing how email’s openness can be exploited.

February 16, 2026 · 5 min
Why Email Provider Support needs a rethink

Why Email Provider Support needs a rethink

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.

February 15, 2026 · 6 min
Email Is Still a Craft — Even If We Pretend It Isn’t

Email Is Still a Craft — Even If We Pretend It Isn’t

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.

February 13, 2026 · 5 min
Amazon WorkMail: Quietly Serious Business Email

Amazon WorkMail: Quietly Serious Business Email

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.

February 12, 2026 · 7 min