Marshal Security Appliance MailMarshal eIOOOO provides identical functionality, flexibility and performance inherent in the SMTP software. The security appliance will form part of the rollout of Marshal’s Multi-Platform strategy. Marshal’s array management technology permits system administrators to manage a large number of appliances across multiple locations from just one central point of view. The Marshal security appliance provides deep content inspection as well as protection against security threats including: spam, phishing, viruses, spyware, fraud, porn, DOS, regulatory non-compliance and intellectual property theft.”]
Source: https://www.darkreading.com/attacks-breaches/marshal-announces-appliance

