On Sat, 7 Apr 2012, Jon Miller wrote:
<ad...@desborough.com.au>: localhost: No address associated with hostname
In a nutshell, Postfix thinks that the address 'admin@$host' does not exist. What does /etc/postfix/aliases say about admin@? Vaguely important: does it point to a live account?
Logs are needed for the bounce - please provide the excerpt from your log file.
What OS are you running? -Dennis
