trusted networks in the local.cf?

[Liam-PrintingAutomation]

These are some stupid questions, but I can't find answers for them doing a Google search. I can't seem to find any example local.cf's that have more than one trusted networks. In the default local.cf, there's this section: #   Set which networks or hosts are considered 'trusted' by your mail #   server (i.e. not spammers) # # trusted_networks 212.17.35. How do you have more than one trusted network? Each on its own line, or comma seperated? Like: trusted_networks 212.17.35.,127.0.0.1 or trusted_networks 212.17.35. trusted_networks 127.0.0.1 Also, when using IP's, can you use a full IP, or do you have to leave the last octet off (after the period) like in the example? Can you use domain names? Like: trusted_networks domain_name.com Thanks for any feedback! Liam