I need general help on a multi-server setup with 2 MTAs (each also a nginx reverse-proxy) 2 mailbox servers (round-robin) when i check nginx.log on both MTA, only the second MTA got https connection (zimbra support also confirmed this) and it seems that this might caused by DNS setup or related network configuration how do I pinpoint as to where the root cause might be? -- Regards, Umarzuki Mochlis http://debmal.my