https://mailmatter.dev/blog Email infrastructure for developers, test pipelines, and AI agents. https://mailmatter.dev/blog/test-email-otp-in-playwright https://mailmatter.dev/blog/test-email-otp-in-playwright Thu, 30 Jul 2026 00:00:00 GMT A Playwright recipe for OTP and magic-link flows: point the signup at a made-up address, long-poll one endpoint until the mail lands, assert on the code. ~15 lines, no inbox setup. https://mailmatter.dev/blog/give-your-ai-agent-an-email-address https://mailmatter.dev/blog/give-your-ai-agent-an-email-address Thu, 23 Jul 2026 00:00:00 GMT Signup flows, OTP codes, and confirmation links block autonomous agents. Here's how to hand your agent a real inbox with one MCP config line — no signup, no polling loop.