My WordPress site should fire an authentication-code email the moment someone registers, yet nothing is leaving the server. The site is already set to send through SMTP and the credentials test fine, so the fault is hiding somewhere deeper—plugin conflict, DNS, or a silent error log I have missed. Alongside that, my linked Gmail inbox has finally hit its storage cap. I need a systematic tidy-up so messages can flow again without me spending hours in front of a progress bar. Here’s what I need from you: • Trace and resolve the WordPress SMTP issue so every new-account email lands successfully. A full test cycle—from signup to code delivery—must pass before we call it fixed. • Provide a quick rundown of what you changed (logs, plugin settings, DNS, etc.) so I can keep it stable. • Bring my Gmail account back under quota: identify space hogs, archive or remove them safely, and set up simple filters to stop future bloat. If you’re comfortable debugging SMTP on WordPress and know your way around Gmail’s storage tools, I’d like to get this wrapped up soon.