"rcpthosts may include wildcards"

[Dave Kitabjian]

This is probably very simple, but indulge me.

man for qmail-smtpd says:

        rcpthosts may include wildcards:

                heaven.af.mil
                .heaven.af.mil

So is the "." the wildcard?  My current understanding is:

        heaven.af.mil - will allow all email to <anyone>@heaven.af.mil
        .heaven.af.mil - will allow all email to <anyone>@<anyhost>.heaven.af.mil

So you need both entries to block *heaven.af.mil. Is this correct?

Also, does the same explanation apply to "virtualdomains" and "smtproutes"?

Thanks in advance!

Dave