MailSecRep adds an Outlook button to analyze email for spoofing, hostile links, and malware attachments.
You can download it from the following link: https://packetstormsecurity.com/files/download/142742/MailSecRep.zip
Source: https://packetstormsecurity.com/files/142742/MailSecRep-Email-Analysis-Tool-For-Outlook.html