Jul 18 07:48:56 rbgw postfix/smtpd[6877]: connect from lemon[10.0.0.20]
Jul 18 07:48:56 rbgw postfix/smtpd[6877]: NOQUEUE: reject: RCPT from lemon[10.0.0.20]: 450 4.1.8 <dwest@lemon.rapid.com>: Sender
address rejected: Domain not found; from=<dwest@lemon.rapid.com> to=<dwest@rapid.com> proto=ESMTP helo=<lemon.rapid.com>
Jul 18 07:48:56 rbgw postfix/smtpd[6877]: disconnect from lemon[10.0.0.20]