This is using MS Exchange 2010 server, with antispam installed. My management wants me to whitelist mails sent from a organisation with multiple child domains. For example, *@etp3001.etp.ap.abc.net, *@etp4009.etp.ap.abc.net, etc; in short, I need to whitelist mails sent from *@*.ap.abc.net, how to do it in exchange? through power shell?
Thanks in advance.