Enter the address of the incoming mail server (POP3) from which you want MailXpert to download email messages sent to this email service. Make sure that the messages will actually get to the server. The server address must match the command address you may have entered in one of the previous steps and the posting address you may enter in one of the next steps or else emails sent to these addresses will not physically get to the server and MailXpert will be unable to download and process them.