POSTFIX+DOVECOT+MYSQL实现简单功能的邮局系统，使用DOVECOT来SASL和LDA

chenqiubite

日志如下：
Nov  9 19:12:54 localhost postfix/qmgr[27602]: warning: private/dovecot socket: malformed response
Nov  9 19:12:54 localhost postfix/qmgr[27602]: warning: transport dovecot failure -- see a previous warning/fatal/panic logfile record for the problem description
Nov  9 19:12:54 localhost postfix/master[31932]: warning: process /usr/libexec/postfix/pipe pid 27707 exit status 1
Nov  9 19:12:54 localhost postfix/master[31932]: warning: /usr/libexec/postfix/pipe: bad command startup -- throttling
Nov  9 19:12:54 localhost postfix/error[27708]: 50EEE7363E1: to=<a@d1.com>, relay=none, delay=1, delays=0/1/0/0.01, dsn=4.3.0, status=deferred (unknown mail transport error)

yoyocn

总是出现访问拒绝，导致SASL授权失败，日志如下：

Mar  7 12:01:09 hp3 postfix/smtpd[26301]: xsasl_dovecot_server_connect: Connecting
Mar  7 12:01:09 hp3 postfix/smtpd[26301]: warning: SASL: Connect to private/auth failed: Permission denied
Mar  7 12:01:09 hp3 postfix/smtpd[26301]: fatal: no SASL authentication mechanisms