SASL authentication

hi,
I installed ispconfig 3 stable version following your guide on centos 6.8 with dovecot postfix and nginx, I tried to login to a mailbox using squirrel mail but failed, I made update to ispconfig and reconfigure the service via " ispconfig_update.sh " command but nothing changes, this is the log of /var/log/maillog

Code:

Feb  8 19:30:01 vps dovecot: pop3-login: Disconnected (no auth attempts): rip=127.0.0.1, lip=127.0.0.1, secured
Feb  8 19:30:01 vps dovecot: imap-login: Disconnected (no auth attempts): rip=127.0.0.1, lip=127.0.0.1, secured
Feb  8 19:30:01 vps postfix/smtpd[17200]: connect from localhost[127.0.0.1]
Feb  8 19:30:01 vps postfix/smtpd[17200]: warning: SASL: Connect to private/auth failed: No such file or directory
Feb  8 19:30:01 vps postfix/smtpd[17200]: fatal: no SASL authentication mechanisms
Feb  8 19:30:02 vps postfix/master[11239]: warning: process /usr/libexec/postfix/smtpd pid 17200 exit status 1
Feb  8 19:30:02 vps postfix/master[11239]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Feb  8 19:30:26 vps dovecot: imap-login: Aborted login (auth failed, 1 attempts): user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured

any help please?

 

Try this -> https://www.howtoforge.com/postfix-...private-auth-failed-no-such-file-or-directory

 

thanks for your replay, I tried this solution before I post here, but nothing changes!

 

Paste postfix config file - main.cf, and the dovecot -n

 

thanks for your replay @Ghostdare , I found that there is a misconfiguration in the path of dovecot.conf , I replaced /etc/dovecot/dovecot.conf by /etc/dovecot.conf and the problem solved

best regards