postfix/smtpd[24178]: warning: SASL per-process initialization failed: generic failure
 postfix/smtpd[24178]: fatal: SASL per-process initialization failed
 postfix/master[22860]: warning: process /usr/lib/postfix/smtpd pid 24178 exit status 1
 postfix/master[22860]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
 postfix/master[22860]: terminating on signal 15