Hi all Running latest version of ISPconfig 3 here I have been having issues with Hotmail/outlook blacklisting my IP for no reason, so I have had to relay emails for certain users through a smart host. I have a requirement that domain1.com goes through smarthost1.com and other domains dont. I have achieved this successfully with sender_dependent_relayhost_maps parameter in postfix. This works to send all emails from domain1.com to smarthost1.com Now I need to limit this to only route emails destined for hotmail.com/outlook.com through this smarthost. Normally I would do this with transport_maps but I see that ispconfig has a few configuration entries in here already. Is it possible to do this through the web interface, or am I OK to add an additional transport map on the end of the ones listed in main.cf already?