I have already asked this but I still cannot get it to work. What Im trying to do is forward alerts from my nagios server to my exchange server. The Nagios server has postfix installed and configured but I keep getting this message when sending
: host 192.168.1.212[192.168.1.21
550 5.7.1 Unable to relay (in reply to RCPT TO command)
I followed these steps
But I still cannot get a relay setup correctly for some reason. Can anyone give me a headsup as to what I may be doing wrong?