O365 outbound email not working

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I'm not sure why I can't get this setup and working. It sounds like it works for some people, but hasn't for me. My setup is

snipe-it v8.2.2-pre build 19319 (ga36afbcb2) on windows server 2019
PHP 8.2.29 (cli) (built: Jul 1 2025 20:19:51)
MAIL_MAILER=smtp
MAIL_HOST=smtp.office365.com
MAIL_PORT=587
MAIL_USERNAME=myemailaddress
MAIL_PASSWORD=mypassword
MAIL_FROM_ADDR=myemailaddress
MAIL_FROM_NAME='Wilsons IT Assets'
MAIL_REPLYTO_ADDR=myemailaddress
MAIL_REPLYTO_NAME='My Company IT Assets'
MAIL_AUTO_EMBED_METHOD='attachment'
MAIL_TLS_VERIFY_PEER=false

I've tried both true and false for tls verify, always to a php artisan config:clear and cache, and restart both IIS and the site itself after each change, uncommented the sockets extension in php.ini, made sure I can telnet to smtp.office365.com, nothing of relevance in the lavarel log. Not sure what else to try, very frustrating

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For anyone having the same issue, you have to have a business premium license and have MFA enabled to get the app password option in 365. Once you have that, you will be able to see the choice to add an app password on the user of your choosing