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Building a Simple, Respectful Mass Emailer on My Own Domain Using Microsoft 365

January 26, 2026 / Automation

Built a Python script to send batch emails via Microsoft Graph API using Excel as the source, device-code authentication (no secrets), and built-in safety controls. Emails come from your real mailbox with resumable state and no third-party services.

Building Rapid Reaktor: Automating Security Responses

January 1, 2026 / Security Automation

How I built a security automation platform that monitors syslog messages and automatically responds to threats by updating External Dynamic Lists (EDLs). A deep dive into pattern matching, automated responses, and building a comprehensive security automation MVP.