this time was a typo, should have read:
domain1-com:
driver = domainlist
transport = remote_smtp
route_list = "*.domain1.com $domain bydns_a;"
smarthost: <-- note: this is 'line 320'
driver = domainlist
transport = remote_smtp
route_list = "* mail-hub.domain.com bydns_a"
My question is the same, what was I doing wrong?
Darren Mackay