postfix install on Jaguar Server 10.2.8

I'm attempting to install postfix on a new virgin Jaguar 10.2.8 Server (Xserve). I've been trying to follow the Installing Postfix on Mac OS X Server document: https://www.afp548.com/Articles/mail/postfix.html very helpful document, with a few out-of-date caveats for the latest snapshot, but helpful, thank you. everything seemed to be going well until the final 'sudo postfix start', at which the system spat back: [www:/etc/postfix] admin% sudo postfix start *** malloc[10331]: Deallocation of a pointer not malloced: 0x444f4; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug *** malloc[10370]: Deallocation of a pointer not malloced: 0x55614; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug *** malloc[10372]: Deallocation of a pointer not malloced: 0x444f4; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug postfix/postfix-script: starting the Postfix mail system [www:/etc/postfix] admin% the telnet test confirmed the failed run: [www:/etc/postfix] admin% telnet 127.0.0.1 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host [www:/etc/postfix] admin% I'm clueless at this point. What have I done wrong? quite urgent, thanks. :(