Testing and Load Tests
Test plans, load generators, and measurement methodology: probing infrastructure under controlled conditions, from a single SMTP transaction to a 10,000-mail burst, and evaluating the results properly.
Planning email load tests: Tools for 10,000-email bursts under Linux and Windows compared
Anyone migrating a gateway or sizing an email environment needs reliable figures rather than gut feelings. Which tools generate bursts of tens of thousands of emails, what a clean test plan looks like, and how to evaluate the results from logs.
SMTP Load Testing with Apache JMeter in Practice: 10,000 Emails, Five Rule Paths, One HTML Report
A complete load test from A to Z: a test plan with a message mix along the ruleset paths of an encryption gateway, a portable setup without installation, 10,000 emails in a burst, and analysis using the JMeter HTML report—including the issues that actually occurred.
What We Can Learn from Science for IT Troubleshooting
Falsifiability, control groups, confounding variables, and sampling bias: the method natural sciences have used for centuries solves exactly the problems where IT troubleshooting regularly fails, illustrated with examples from mail flow.
Testing SMTP on Linux: From the TCP Connection to Delivered Email
When an appliance stops delivering email, a manual SMTP test is more useful than any log. Learn how to check each layer using built-in tools, what different error patterns mean, and why a load balancer can distort diagnosis.
Testing Cold Storage with Rclone: A Practical Test Plan
Before a service reads its files from the cloud through an Rclone mount, you should verify more than directory access. This test plan covers cold reads, warm reads, write operations, cache behavior, file integrity, and failures.
