On 26.09.17 12:02, Kirk Bocek wrote:
Thank you Benny and Wietse. Things are better now. However I have
lots of log entries like:
Sep 26 11:57:52 amber postfix/smtpd[11213]: NOQUEUE: reject: RCPT
from unknown[10.0.2.1]:
554 5.7.1 <bjzudixre...@wysina.com.tw>: Sender address rejected: No
Spam; from=<bjzudixref
r...@wysina.com.tw> to=<bc...@yahoo.com.tw> proto=SMTP helo=<My IP>
Looks like sender address rejection. the error message seems to be
custom, which means you should search for check_sender_access in your config
file.
if this still applies:
https://marc.info/?l=postfix-users&m=150628487603535&w=2
then you have:
check_sender_access hash:/etc/postfix/sender_access,
which means the sender is listed in /etc/postfix/sender_access
First off, at what stage is this rejection happening? Obviously, I
want it to happen during HELO to keep the bandwidth down.
you can't reject sender at HELO stage, because at that stage the sender is
not known yet.
Second, this server is sitting behind a firewall (10.0.2.1). Is there
anyway to get the sending IP address instead of the firewall?
configure your firewall to do destination NAT, so you see the real
source. Hiding real source causes big problems to spam detection.
--
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