Laravel11 SMTP and verify Mail

I'm new in the laravel world and setup a complete new laravel11 environment with composer. I implemented the login and register option for the frontend with the documentation

Now there is a problem: if I use "log" as MAIL_MAILER in the .env file everything is fine and I got the mail in the log. The routes also redirects correctly and if I copy the verify mail link and execute it, it also works fine. When I switch to smtp as MAIL_MAILER there is no Mail sent.

So I tried if my SMTP config is correct in an smtp test tool

If I choose TLS and Port 587 or 25 ... the tool works If I choose SSL and 465 the tool didnt work.

But my Mail SMTP Service says I need Port 465, but the other ways worked in the test tool. I tried all combinations from MAIL_ENCRYPTION and MAIL_PORT in the env file, but none of it works when starting a registration in laravel.

Are there any ideas ?