Outlook has blocked some attachments in this message because they appear to be unsafe

I got a mail with an attachment and i can not download the attachment just like anyone having posted same questions here.
I even can not forward that mail with the attachment to my other mail address !
I have the sender added into the Safe senders and checked "Show attachments, pictures, and links for senders with good reputations" on! But nothing changed!

I do not need this function to protect me from virus because this function is very stupid and only able to check the attachment by the file extensions! I do have my excellent anti-virus software installed!

Why the team can not offer a button like "I do need to download it anyway!"?