Postfix Permission denied

mail.err

May 31 05:31:43 ohdweb postfix/tlsmgr[29981]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:32:44 ohdweb postfix/tlsmgr[30004]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:33:45 ohdweb postfix/tlsmgr[30053]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:34:46 ohdweb postfix/tlsmgr[30077]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:35:47 ohdweb postfix/tlsmgr[30099]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:36:48 ohdweb postfix/tlsmgr[30123]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:37:49 ohdweb postfix/tlsmgr[30144]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:38:50 ohdweb postfix/tlsmgr[30167]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:39:51 ohdweb postfix/tlsmgr[30199]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:40:52 ohdweb postfix/tlsmgr[30325]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied

mail.info

May 31 05:43:56 ohdweb postfix/master[16399]: warning: /usr/lib/postfix/tlsmgr: bad command startup -- throttling
May 31 05:44:56 ohdweb postfix/tlsmgr[30425]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:44:57 ohdweb postfix/master[16399]: warning: process /usr/lib/postfix/tlsmgr pid 30425 exit status 1
May 31 05:44:57 ohdweb postfix/master[16399]: warning: /usr/lib/postfix/tlsmgr: bad command startup -- throttling
May 31 05:45:57 ohdweb postfix/tlsmgr[30446]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:45:58 ohdweb postfix/master[16399]: warning: process /usr/lib/postfix/tlsmgr pid 30446 exit status 1
May 31 05:45:58 ohdweb postfix/master[16399]: warning: /usr/lib/postfix/tlsmgr: bad command startup -- throttling
May 31 05:46:58 ohdweb postfix/tlsmgr[30478]: fatal: open database /var/lib/postfix/smtp_scache.db: Permission denied
May 31 05:46:59 ohdweb postfix/master[16399]: warning: process /usr/lib/postfix/tlsmgr pid 30478 exit status 1
May 31 05:46:59 ohdweb postfix/master[16399]: warning: /usr/lib/postfix/tlsmgr: bad command startup -- throttling

解决方法

sudo chown postfix:postfix /var/lib/postfix/smtp_scache.db