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Email Delivery

By Greg Nowak, 3 December, 2020

Sending Mail from a Linux Server with Postfix: A Reliable, Relay-First Setup

Set up Postfix as a secure outbound mail service using an SMTP relay, then test delivery, authentication, DNS, logs, and queue health.

Sending Mail with Drupal: Reliable Email Setup for Business Sites

A practical guide to reliable Drupal email: choose the right transport, authenticate your domain, test delivery, and monitor messages after launch.

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Prompt Caches Have Write Costs Now—Audit What Your Workflow Reuses

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GPT-5.6 makes cache writes billable. See how to spot wasted writes, stabilise prompt prefixes, place breakpoints and measure whether caching pays.

The AI Crawler in Your Logs May Be Wearing a Borrowed Name

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A User-Agent is a claim, not proof. See how to verify AI crawler traffic before it shapes reporting, robots.txt decisions, or WAF exceptions.

AI Agents Need a Spending Brake, Not Just a Billing Dashboard

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AI agent costs can climb inside a single workflow. Runtime budgets, loop detection, outcome metrics, and safe handoffs keep that spending under control.

Drupal 12 Slipped to December. Drupal 10 Still Runs Out of Road

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Drupal 12 arrives as Drupal 10 support ends in December 2026. Moving to Drupal 11.3+ first keeps two mandatory upgrades manageable.

EU OpenAI Residency Is a Migration Project, Not a Dashboard Toggle

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An EU-resident OpenAI API setup needs a new project, regional routing, dependency and state migration, compatibility testing, and clear governance evidence.

AI Images Need a Chain of Custody, Not Just a Disclosure Label

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AI image labels are only the endpoint. Learn how to test C2PA credentials through editing, CMS, CDN and agency handoffs while preserving evidence.

MCP Just Went Stateless: Audit the Integrations Behind Your AI Tools

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The 28 July 2026 MCP release removes protocol sessions and changes discovery, tasks, caching, OAuth and tracing. A practical guide to auditing the move.

SEO Trends for 2026: What Actually Changed Since 2024

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A practical guide to what changed in SEO between 2024 and 2026, from AI and multimodal search to Core Web Vitals, privacy and local visibility.

INP and Green SEO Share a Backlog: Cut the Work Every Visit Repeats

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INP and sustainable web work often expose the same waste. Use field data, profiling, caching and performance budgets to build one practical backlog.

AI crawler policy now has verbs: separate search, RAG, and training

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AI crawler rules now need separate decisions for search, RAG, and training, backed by practical testing across robots.txt, CDNs, WAFs, and CMS controls.