def append_strings(self, string_list, header=False):
        """Append tag=pairs for each supplied string.

        :param string_list: List of "tag=value" strings.
        :param header: Append to header if True; default to body.

        Each string is split, and the resulting tag and value strings
        are appended to the message."""

        for s in string_list:
            self.append_string(s, header=header)
        return
Append tag=pairs for each supplied string.

        :param string_list: List of "tag=value" strings.
        :param header: Append to header if True; default to body.

        Each string is split, and the resulting tag and value strings
        are appended to the message.