Prerequisites Outgoing email setup (e.g. using Mailcatcher, etc.) Setup Log in as admin Go to " Site administration / Plugins / Authentication / Manage authentication " Enable " LDAP server " Click on the " Settings " link for the " LDAP server " authentication method. Set the " Password-change URL " (" auth_ldap | changepasswordurl ") to " https://example.com/wherever.php?a=1&b=2 " Save the changes. Go to " Site administration / Users / Accounts / Browse list of users " Edit a user's profile (let's call this user1). Change user1's authentication method to " LDAP server ". Save the changes then log out Test Go to the login page. Click the " Forgotten your username or password? " link. Enter user1's username, then press " Search " Check the password reset email. Confirm that email contains the URL corresponding to the " Password-change URL " setting (" https://example.com/wherever.php?a=1&b=2 ").