We use a Sophos XGS87 (SFOS 19.5.3 MR-3-Build652) and we want to use POP3 Scanning in legacy mode. In document ( https://doc.sophos.com/nsg/sophos-firewall/18.5/help/en-us/webhelp/onlinehelp/AdministratorHelp/Email/HowToArticles/EmailConfigurePOPIMAPScan…