If I have more than one server does UE downoad complele list of headers from all the servers and duplicate the download time or it downloads only the missing headers from the fist server and so on.
IOW, when I see the header list, how to tell on which server the headers and files exist since there is no column that tells me the server name?
Question about header download
Properties->Servers->Get headers allows you to specify from which servers you want headers pulled from. If you check 'Msg-id direct' and uncheck 'Get headers' you can pull headers from your ISP or free server(s) and save the bandwidth on pay ones by only downloading using Msg-ID direct whenever needed. If 'Get headers' is checked, UE will download all headers for every server that is checked - it does not just fill the blanks.
To find which server a particular article is available on, right-click on it in the list and choose 'Properties'.
To find which server a particular article is available on, right-click on it in the list and choose 'Properties'.