whithin this log:
Quote:Oct 19 16:41:48 localhost postfix/smtpd[5513]: connect from unknown[219.93.67.74]
Oct 19 16:42:15 localhost postfix/smtpd[5513]: 56D17105BF2D: client=unknown[219.93.67.74]
Oct 19 16:42:24 localhost postfix/smtpd[5513]: 56D17105BF2D: reject: RCPT from unknown[219.93.67.74]: 554 5.7.1 <dinas@eskyglobal.com>: Relay access denied; f
rom=<dinas@eskynation.com> to=<dinas@eskyglobal.com> proto=ESMTP helo=<eskynation.com>
Oct 19 16:42:36 localhost postfix/cleanup[5517]: 56D17105BF2D:
you are not sasl authentificated.... Did you turn on the authentification für smtp server in your client?