postfix/smtpd

[kilburn]

Quote:postfix/smtpd[3452]: NOQUEUE: reject: RCPT from unknown[62.176.118.69]: 554 5.7.1 <emil@llama.gs>: Relay access denied; from=<admin@rousse-lan.com> to=<emil@llama.gs> proto=ESMTP helo=<[192.168.1.102]>

This is not a server-side problem. You have to check "The server requires authentication" (or something similar) in the SMTP configuration of your mail client (thunderbird).