On 2/20/2016 11:12 AM, Christian Kivalo wrote:
On 2016-02-20 16:45, Curtis Maurand wrote:
Not sure if I found something or not. A client tried to send email
to one of my other addresses. The requisite portion of the main.cf
follows at the end of the message. The logs are telling me:
Feb 19 16:30:29 ispconfig postfix/smtpd[18437]: warning: hostname
delivery.mailspamprotection.com does not resolve to address
108.163.243.188
Feb 19 16:30:29 ispconfig postfix/smtpd[18437]: connect from
unknown[108.163.243.188]
Feb 19 16:30:29 ispconfig postfix/smtpd[18437]: NOQUEUE: reject: RCPT
from unknown[108.163.243.188]: 450 4.7.1 Client host rejected: cannot
find your hostname, [108.163.243.188];
from=<edi...@whiteeaglenews.com> to=<cmaur...@xyonet.com> proto=ESMTP
helo=<delivery.mailspamprotection.com>
Have you had dns lookup problems? This is a temporary error and the
client should retry delivery
450 4.7.1 Client host rejected: cannot find your hostname,
[108.163.243.188]:
retry timeout exceeded
the original message was sent on the 15th. the return bounce on the
19th. I haven't rebooted or restarted services on that machine and all
of the included lookups for this mail message were performed on the same
machine this morning.
--
Curtis Maurand
cur...@maurand.com <mailto:cur...@maurand.com>
207-252-7748
