About Meysam Azad
Senior Site Reliability Engineer
Hell, and welcome to my profile 👋
I am a Senior Site Reliability with 7+ years of experience managing production workloads using automation and orchestration.
I write technical content on the Developer Friendly Blog using the knowledge and expertise I've gathered over the years.
I provide deep-dive tutorials and blog posts that help hundreds of professionals improve their system administration skills and become better engineers.
I have learned much managing production systems, and I share the following topics, among many, on the blog:
- Kubernetes ☸️
- Linux 🐧
- GitOps 🔃
- Ansible 🅰️
- Terraform 🔨
- Cloud Providers, e.g., AWS, Azure, etc. ☁️
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Posts
MTA-STS (RFC 8461) tells sending servers to require TLS when they deliver mail to you. It's a good control with one blind spot: when a sender can't establish TLS, you don't hear about it. TLS-RPT closes that gap, and it costs nothing to run: it's one DNS record, and the senders do the reporting. What TLS-RPT is TLS-RPT (RFC 8460) is a TXT record at _smtp._tls.yourdomain : v=TLSRPTv1; rua=mailto:tl...
TLS-RPT: the record that tells you when MTA-STS breaks
Nov 08, 2026
In DMARCguard's 27 February 2026 scan of 5,499,028 domains, 46.49% of DMARC records had no rua tag. Those domains publish a policy and get no feedback from it. What rua does rua lists where receiving mail providers send your aggregate reports, typically once a day per provider. The reports say which IPs sent mail as your domain, how much, and whether it passed SPF, DKIM and DMARC. You get a separa...
No rua, no reports: the DMARC tag 46% of records are missing
Nov 07, 2026
In February I scanned the full Tranco Top Sites list, 5,499,028 domains, for email authentication records. The headline: fewer than half of the domains that publish DMARC enforce it. The numbers (DMARC Adoption 2026, scanned 27 February 2026) 30.4% publish a DMARC record. 12.8% enforce it with p=quarantine or p=reject. 56.0% publish SPF, the most widely deployed of the protocols measured. At least...
DMARC in 2026: 30.4% publish it, 12.8% enforce it
Nov 06, 2026
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