John Schmerold:
> Oct 18 08:51:58 stl-mx postfix/smtpd[7741]: NOQUEUE: reject: RCPT from
> warrentonoil.pdi-cloud.com[64.9.152.145]: 450 4.7.1 <a...@h.com>: Recipient
> address rejected: Service is unavailable (try later); from=<d...@w.com>
> to=<a...@h.com> proto=ESMTP helo=<c2011-02.c2011.local>
The text 'Service is unavailable' does not appear in any Postfix
source code that I have released, ever, in 21 years.
Therefore, it comes from something that you have configured,
perhaps the check_policy_service.
Wietse
