zenymoney/xantibot-sender ? reverse-engineered prompt

Build me a PHP 8.2 email sender app that can run on Windows or Linux and supports three ways to send mail, direct SMTP, SMTP through a proxy, and Gmail API. I want it to handle large email campaigns with rotating SMTP accounts, rotating subject lines, sender names, links, and message content, plus support for templates, attachments, recipient lists, and simple config files.

Please include a clean setup flow, clear documentation, and working example files so I can edit the lists and run it right away. It should also have the content tagging tools described in the README, like random text, timestamps, UUIDs, device and browser values, country codes, IP, user agent, and custom placeholders. If anything depends on current package behavior, look up the latest docs online. Make the whole thing practical and easy to launch from the command line or the provided run scripts.