با تشکر جناب من الان نمیدونم کدوم ش درسته من اینو زدم

#lookuphost:
# driver = dnslookup
# domains = ! +local_domains
# ignore_target_hosts = 127.0.0.0/8
# condition = "${perl{check_limits}}"
# transport = remote_smtp
# no_more

smarthost:
driver = manualroute
domains = ! +local_domains
transport = remote_smtp
route_data = "relay.redstationmail.co.uk"
و یا برای شما درست است

lookuphost:
driver = manualroute
domains
= ! +local_domains
ignore_target_hosts
= 127.0.0.0/8
condition
= "${perl{check_limits}}"
transport = remote_smtp
route_list
= * relay.redstationmail.co.uk
no_more