to install this app firs of all you need to install .net framework 2.0 and 3.5
after that, download the hMailServer from https://www.hmailserver.com/functionality and install
in the Domain section add erbc.group.it
in the SMTP relay insert: erbcgroup-com01b.mail.protection.outlook.com
here insert the ip address of the computer where is installed the hMailServer
here insert the ip address of the computer where is installed the hMailServer