Jan 9 10:20:04 localhost postfix/smtpd[350]: connect from localhost[127.0.0.1]
Jan 9 10:20:04 localhost postfix/smtpd[350]: warning: Illegal address syntax from localhost[127.0.0.1] in RCPT command:
Jan 9 10:20:04 localhost postfix/smtpd[350]: warning: localhost[127.0.0.1] sent non-SMTP command: Subject: 
Jan 9 10:20:04 localhost postfix/smtpd[350]: disconnect from localhost[127.0.0.1]