Drupal running behind a proxy send emails with links to the wrong domain/IP

Question

So I have a public site http://www.mysite.com with the following vhost entry:

ProxyPass /press http://123.45.67.89/press
ProxyPassReverse /press http://123.45.67.89/press

And I have a Drupal site running at http://123.45.67.89/press ready to receive requests.

All works fine except emails sent from the Drupal site come through as:

http://123.45.67.89/press/user/reset/1/1384468691/3WY1S7QUJK8Wdp78U9Itu2ygw-KenVLY_9mgBZeTOy8

Which is not accessible to the general public, and instead needs to output:

http://www.mysite.com/press/user/reset/1/1384468691/3WY1S7QUJK8Wdp78U9Itu2ygw-KenVLY_9mgBZeTOy8

How can I trick Drupal to think it's being accessed on the desired domain? Thanks for any advice.

Answer 1

Silly me, forgot all about setting $base_url in settings.php. By default it is commented out, but I've now set it to:

$base_url = 'http://www.mysite.com/press';