On 2021-05-13 19:07, Maurizio Caloro wrote:
May 13 18:42:43 nmail postfix/smtpd[15632]: NOQUEUE: reject: RCPT from
ld4prd5.mx.csod.com[208.185.235.45]: 550 5.7.23 <name@domain>:
Recipient
address rejected: Message rejected due to: SPF fail - not authorized.
Please
see
http://www.openspf.net/Why?s=mfrom;id=recruit...@kncareers.com;ip=208.185.23
5.45;r=<UNKNOWN>;
from=<name@domain> to=<name@domain> proto=ESMTP
helo=<mail.ld4.csod.com>
uninstall outdated spf policy service
and then install spf-engine from lunchpad, then atleast spf is solved,
if still unstable, change -all to ~all so it will not be hardfail on
errors
when you hide sender domains i cant help more
its atleast not a postfix error to solve