smtp.py 文件源码

def do_MAIL(self, rest):
        if self._from:
            self.sendCode(503,"Only one sender per message, please")
            return
        # Clear old recipient list
        self._to = []
        m = self.mail_re.match(rest)
        if not m:
            self.sendCode(501, "Syntax error")
            return

        try:
            addr = Address(m.group('path'), self.host)
        except AddressError, e:
            self.sendCode(553, str(e))
            return

        validated = defer.maybeDeferred(self.validateFrom, self._helo, addr)
        validated.addCallbacks(self._cbFromValidate, self._ebFromValidate)