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I have not been receiving system mail for root in Etch. No problem in Sarge. I noticed this after a power loss yesterday and noted no message from my UPS controller. My /etc/aliases file is correct, duplicating Sarge. I tried using the command "$ mail root" to send a test message. I cc'd my user name in the test message. Root received no message. The mail was sent to the SMTP server of my ISP and it sent me an error message, apparently because my system had changed my user name to my email address in the cc: field. The implication is that all local system mail is being addressed to root@myisp which my ISP doesn't recognize, I hope, and it certainly doesn't recognize the sender. I can't find anything different in the exim4 configuration, compared to Sarge, that might do this. I notice the 'mail' program does not terminate with an "EOT" followed by an "&" as the documentation indicates but have no idea if this is significant. I have found nothing in documentation or Google. Does anyone have any suggestions? Thanks.