Master of Science in Computing in Cybersecurity

SMTP

Simple Mail Transfer Protocol for sending email securely.

DNS

Domain Name System for mapping names to IP addresses.

SPF

Sender Policy Framework to validate sending IPs.

DKIM

Cryptographic signatures to protect message integrity.

DMARC

Policy for handling failed SPF and DKIM checks.

State of DMARC in Ireland 2024

Mail-in-a-Box

Turn a server into a complete mail platform.

Visit Mail-in-a-Box

Redecentralized Internet

Self-hosting and decentralised services for resilience.

BEC Attacks

Business Email Compromise and ways to reduce risk.

Tools

Domain Auth Analyzer

Upload a TXT/CSV with domains and check SPF, DKIM (common selectors), DMARC, and optional BIMI. Charts + exact-copy PDF/CSV/JSON export. Browser-only.

Open domains-checker.html

Single-Domain DNS Check

Fetch SPF, DKIM, DMARC TXT, and check HTTP/HTTPS reachability. Friendly hints for next steps.

Open dns-check.html

Research Repository

The scripts, raw email headers, DNS measurement data, and analysis workbooks from this study are openly published on GitHub.

Legitimate and spoofed send scripts (swaks / telnet)
Raw email headers across all 7 receivers and 7 regimes
DNS measurement reports for all 5 Irish domain datasets
Headers analysis and regimes workbooks

View on GitHub →