Problems with Multiple TCP/IP Addresses
If you have multiple TCP/IP addresses on a machine running ListManager, you may need to configure ListManager to use particular IP addresses for particular tasks.
For example, if you have three TCP/IP addresses, say:
207.90.101.4
207.90.101.5
207.90.101.6
You may want to configure ListManager so each site uses a particular IP address for incoming and outgoing SMTP and NNTP connections. Or, you may want to specify a particular IP address because others on the machine do not have internet accesss. This may be configured in Utilities: Administrations: Sites: Edit Site: SMTP and NNTP.
In some situations, not all IP addresses on a machine have access to the internet for DNS lookups. The IP address ListManager uses to connect to the Internet for DNS lookups may be configured in Utilities: Administration: Server: Server Settings: Machine/Node Settings: IP Addresses: DNS IP Address.