Do you want to turn on “instant E-Mail notification” by default?

E-Mails can you help to get more replies on your forum. Therefore some forum admins turn on this option by default. How would I do that?

To change all current members to this setting – AdminCP > Import & Maintenance > Execute SQL Query > Automatic Query, chose “Instant Email Notification” from the dropdown menu, Click the “Continue” button, and on the next page under Confirm Query Execution click “Continue” again.

Reminder: You should have a current backup before running queries.

To set the default for future registrations – AdminCP > vBulletin Options > User Registration Options > Default Registration Options > Automatic Thread Subscription Mode, select “Instant Email Notification” from the dropdown menu, and click “Save” at the bottom of the screen.

Source: http://www.vbulletin.com/