Please get rid of this feature. As you know it collects everytihng like a vaccum. Better to attach attachments manually or when the feature becomes more intuitive or smarter then it will work. This feature has been neglected for years although its intent was good. It just never worked the it should and now many contacts have junk attachments being sucked in like logos and signatures. Removing this feature from Hubspot would not cost you any development time.