Daemon Channel Option

Forced routing to gateways
The interpretation and usage of the  channel option depends upon the type of channel to which it is applied. Currently, the only type of channel for which the  option is relevant is SMTP over  TCP/IP channels. Normally such channels connect to whatever host is listed in the envelope address of the message being processed. The  option is used to tell the channel to instead connect to a specific remote system, generally a firewall or mailhub system, regardless of the envelope address. The actual remote system name is given as an argument to, e.g.: msconfig&#x3e; set channel:tcp_firewall.daemon firewall.domain.com If the argument after the  option is not a fully qualified domain name (or alternatively a square bracket enclosed literal IP address), the argument will be ignored and the channel will connect to the channel&#x27;s official host. When specifying the firewall or gateway system name as the channel&#x27;s official host name,  , the argument given to the   option is typically specified as  , e.g.: msconfig&#x3e; show channel:tcp_firewall role.channel:tcp_firewall.official_host_name = firewall.domain.com role.channel:tcp_firewall.daemon = router role.channel:tcp_firewall.mx (novalue) role.channel:tcp_firewall.pool = SMTP_POOL role.channel:tcp_firewall.smtp (novalue)

See also:
 * TCPIP channels
 * connectalias Option
 * official_host_name Option
 * TCPIP connections and DNS lookups channel options
 * Gateway or firewall or mailhub channel options
 * Channel options