SSL - Error - How to go "around" it

Hi There

I have the following problem, while accessing a website from a partner

Error Message:

ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Unsupported protocol

The client and server don't support a common SSL protocol version or cipher suite.

Google Chrome lets me open the page, but tells me: "Your connection to this site is not fully secure". 

I know, that the website uses an "outdated" security configuration. But this partner may not so fastly change that. Is there a possibility to tell Edge kind a list of websites, where he can ignore that? To disable this feature completely is not a solution in my opinion. (to manage a "whitelist also not, but it is the smaller pain)

Other suggestion? (other Browser is also no opinion and with Internet Explorer 11 it does not work :-( )

Kind Regards

David