Mail problem in cyberpanel

Hi,

This is my first post here, I’ve recently installed cyberpanel , and it looks good with great functions .

I’m using php and wordpress

tried to setup contact form with php and with woordpress also contact form7 and none of them works.

Here is error r log from mail server.
Dec 13 10:58:57 localhost postfix/smtpd[218395]: connect from unknown[193.169.253.118]
Dec 13 10:58:57 localhost postfix/smtpd[218395]: warning: SASL: Connect to private/auth failed: Connection refused
Dec 13 10:58:57 localhost postfix/smtpd[218395]: fatal: no SASL authentication mechanisms
Dec 13 10:58:57 localhost postfix/smtpd[218397]: connect from unknown[193.169.253.118]
Dec 13 10:58:57 localhost postfix/smtpd[218397]: warning: SASL: Connect to private/auth failed: Connection refused
Dec 13 10:58:57 localhost postfix/smtpd[218397]: fatal: no SASL authentication mechanisms
Dec 13 10:58:57 localhost postfix/smtpd[218399]: connect from unknown[193.169.253.118]
Dec 13 10:58:57 localhost postfix/smtpd[218399]: warning: SASL: Connect to private/auth failed: Connection refused
Dec 13 10:58:57 localhost postfix/smtpd[218399]: fatal: no SASL authentication mechanisms
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218390 exit status 1
Dec 13 10:58:58 localhost postfix/master[154851]: warning: /usr/libexec/postfix/smtpd: bad command startup – throttling
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218391 exit status 1
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218393 exit status 1
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218395 exit status 1
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218397 exit status 1
Dec 13 10:58:58 localhost postfix/master[154851]: warning: process /usr/libexec/postfix/smtpd pid 218399 exit status 1
Dec 13 10:59:58 localhost postfix/smtpd[218403]: connect from unknown[193.169.253.118]