Email

Independent technical write-ups on email authentication (SPF, DKIM, DMARC), deliverability, and provider reviews.

44 posts

Amazon WorkMail: Built for Resilience

Amazon WorkMail looks basic at first glance, but beneath its minimal interface sits serious AWS infrastructure built for operational resilience, strict governance, and disaster recovery.

The 6 "From" Addresses Inside Every Single Email

The address you see in an email isn’t always the one that actually sent it. Behind every message are multiple “from” identities — each with a different technical role. Understanding them explains spam checks, bounces, and why email authentication exists at all.