Messages Html 〈iPhone FAST〉

+ $message['headers']['Content-Type'] = 'text/html'; + $message['params']['theme'] = 'contact_storage_mail'; + $message['params'][ text-wrap CSS property - MDN Web Docs

Are you trying to fix a specific display issue in an email, or Messages html

: Set the header to text/html instead of text/plain so the receiver's client renders the HTML properly. + $message['headers']['Content-Type'] = 'text/html'

: Displays text in a fixed-width font and preserves all whitespace exactly as written in the source code. + $message['params']['theme'] = 'contact_storage_mail'

Allow messages sent to be text/html instead of text/plain - Drupal