When a company records in its registers the transfer of any security, it shall not be under any duty to satisfy itself that such transfer is within the contractual power of the transferor or transferee or that any legal requisite which obtains with reference to the ability of the transferor or transferee to transfer or to take transfer has been complied with or that any person signing any document relevant to the transfer on behalf of any person or company has been duly authorised to sign that document: Provided that the provisions of this section shall not absolve any company from liability arising from any fraudulent act to which it is knowingly a party.