Blog

Technical reference for Azure Communication Services Email: domain verification (SPF/DKIM/DMARC), managed vs custom domain rate limits, size and resource limits, Event Grid integration for delivery and engagement tracking, and a SendGrid comparison covering the subuser/dedicated-IP model plus a worked-out cost comparison at several volumes.

Migrating Azure Key Vault Terraform state between two repositories with separate backends. Covers cross-state terraform state mv, a resource-group mismatch caught before apply, and a method for distinguishing an in-use resource from an orphaned one.

Deploying a FortiGate NGFW VM from the Azure Marketplace with a two-arm WAN/LAN design. Covers Terraform for the subnets and NSGs, a UDR routing AKS egress through the firewall, a VIP for inbound HTTPS, asymmetric routing settings, and the SNAT policy on the LAN to WAN path.

Using az monitor to measure CPU, memory, and IO utilization on an Azure Database for PostgreSQL Flexible Server, then deciding whether to downscale a Standard_D2s_v3 SKU based on the observed headroom.