parser.add_argument('-H','--hashstring',dest='hashstring',default='{salt}{campaign}{infix}-{site}',help='string to be hashed for the URL (default: "{salt}{campaign}{infix}-{site}" where "{salt}" is a random string)')
parser.add_argument('-S','--smtpserver',dest='smtpserver',default='localhost',help='SMTP server to use (default: "localhost"); port can be specified with "<host>:<port>" notation and takes precedence over implied ports and port specification')
parser.add_argument('--smtpport',dest='smtpport',default=0,type=int,help='SMTP port to use (default: 25); takes precedence over implied ports')