Hi all, Recently, I received only one mail thru mailer-daemon account that I don't know why this mail can reach and sent to mailer-daemon so I received as root. (I'd set aliases mailer-daemon -> postmaster-> root) Then I tried to send mail from my gmail to mailer-daemon directry but that was received a returned mail as Address Rejected that is normally. Which is the reason for this event? Cheers! Thank you Chen (CentOS, Postfix, TLS, Dovecot, Apache)
