Unable to send email using swiftmailer library. Getting Expected response code 250 but got code "550". How to fix this?

My laravel application isn't working with mijn domain smtp mail.

SMTP credentials

These are the credentials for my smtp mail. This is my .env file

MAIL_DRIVER=smtp
MAIL_HOST=smtp.transip.email
MAIL_PORT=465
MAIL_USERNAME=noreply@schouwenduivelandinbeeld.nl
MAIL_PASSWORD=Hallootjes123
MAIL_ENCRYPTION=ssl

I get this error:

The error i get

What am i doing wrong?