500 Internal Server Error when following link in email invite

500 – Internal server error is usually a configuration error on the server. Common causes are things in the .htaccess file, redirects, or file/folder permissions being incorrect on the server. You can usually get your hosting tech support to track it down and fix it for free.

As noted above this is a IIS/Windows site not an apache site.
I am the host and have full access to the server.

Does the confirmation url look like this, https://Asblogsite.com/wp-login.php

No. I’ve found the code that generates the link, it contains this code section it:
site_url(“/newbloguser/$newuser_key/”)
While the $newuser_key variable does work (in that user B does get the access configured by user A) – user B also gets that internal server error.

I also noticed in testing that the “key” code is not uniquely generated each time. If I add a user, delete the user then add them again they get the exact same link. I don’t if that’s an issue or not, I just expected to see a different key at the end of the url path.

Anyway, here is a sample of what is sent on behalf of user A to user B for them to click:
—Paste—
Hi,

You’ve been invited to join ‘Kevin Gagel's blog’ at
https://blogs.cnc.bc.ca/gagel with the role of contributor.

Please click the following link to confirm the invite:
https://blogs.cnc.bc.ca/gagel/newbloguser/9778d/
—End Paste—

What is generating the invitation to join? WP sends a message like this

Username: tester
Password: 12345
https://yoursite.com/wp-login.php

WordPress is generating the email using /wp-admin/user-new.php file. The specific code is located within the else statement of line 72 which concludes at line 84.
Here is the specific code:
[Code moderated as per the Forum Rules. Please use the pastebin]

Was this ever resolved? I’m experiencing the same problem.

@webmom: Please post a new topic.