None - no verification steps (<em>Not
Recommended </em>)<br>
Confirm (*) - email confirmation step required <br>
Require approval - require list administrator
Approval for subscriptions <br>
Confirm and approve - both confirm and approve
<p>(*) when someone requests a subscription,
Mailman sends them a notice with a unique
subscription request number that they must reply to
in order to subscribe.<br>
This prevents mischievous (or malicious) people
from creating subscriptions for others without
their consent.