The Thawte SSL 123 Wildcard Certificate secures all sub domains for a domain (*.domain.com-sample for group names) and the domain itself (domain.com-sample). Furthermore, the license includes unlimited use on various servers. In this way, the certificate can be used on multiple virtual or physical servers.
With the domain-valided certificate, validation takes place by Approve-Mail. This validation process makes the certificate available very quickly.
More information on this topic is available at