TYPO3 Core

The cli command backend:resetpassword expects two parameters the backend login URL and the email address.
The backend login URL is then used as a prefix to create the RESET PASSWORD link.
However the TYPO3 Logo which is taken from backend extension configuration is not prefixed with that URL, but rather the cli path, thus with a backend logo extension config of
EXT:mysitepackage/Resources/Public/Images/backend/provider.png
this results in a HTML mail image url of http://vendor/bin/typo3conf/ext/mysitepackage/Resources/Public/Images/backend/provider.png" and thus a broken logo