Dec  9 14:56:01 renji postfix/master[15589]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Dec  9 14:57:01 renji postfix/smtpd[20861]: fatal: open database /etc/aliases.db: No such file or directory
Dec  9 14:57:02 renji postfix/master[15589]: warning: process /usr/libexec/postfix/smtpd pid 20861 exit status 1
Dec  9 14:57:02 renji postfix/master[15589]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Dec  9 14:58:02 renji postfix/smtpd[21743]: fatal: open database /etc/aliases.db: No such file or directory
Dec  9 14:58:03 renji postfix/master[15589]: warning: process /usr/libexec/postfix/smtpd pid 21743 exit status 1
Dec  9 14:58:03 renji postfix/master[15589]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Dec  9 14:59:03 renji postfix/smtpd[23296]: fatal: open database /etc/aliases.db: No such file or directory
Dec  9 14:59:04 renji postfix/master[15589]: warning: process /usr/libexec/postfix/smtpd pid 23296 exit status 1
Dec  9 14:59:04 renji postfix/master[15589]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling