DNSSEC for Email Operators: Worth It, and How Not to Break Everything
Every email trust decision resolves through DNS, and DNSSEC is what makes those answers tamper-proof. What it buys email, what DANE requires, and safe operations.
#Security
3 articles with this tag
MTA-STS in Practice: Adoption, Tooling, and Real Implementation
MTA-STS closes the STARTTLS downgrade hole by letting domains require verified TLS for inbound mail. The policy file, the DNS record, and the gotchas in between.
Subscription Bombing: When Your Signup Form Becomes a Weapon
Attackers use unprotected signup forms to bury a victim's inbox in confirmation mail. How the attack works, why your domain absorbs the damage, and how to close the door.