'Generate an SMTP/POP3 virtual domain.
This option requires an argument of the form \'NAME=PATH\' where NAME is
the DNS domain name for which email will be accepted and where PATH is
a the filesystem path to a Maildir folder.
[Example: \'example.com=/tmp/example.com\']'

def opt_maildirdbmdomain(self, domain):

    try:
        (name, path) = domain.split('=')
    except ValueError:
        raise usage.UsageError("Argument    to    --maildirdbmdomain    must    be    of    the    form    'name=path'")
    self.last_domain = maildir.MaildirDirdbmDomain(self.service, os.path.abspath(path))
    self.service.addDomain(name, self.last_domain)
