On Sun, Oct 18, 2020 at 04:07:24PM -0400, Joey J wrote:
> I'm trying to understand why this is telling me host not found.
> On that same server if I nslookup the ip it does resolve.
Only in the IP -> name direction. The name -> IP direction fails.
And it seems you've configured: reject_unknown_client_hostname or
equivalent.
> Oct 18 16:00:51 mgw postfix/smtpd[24119]: NOQUEUE: reject: RCPT from
> unknown[199.5.50.180]: 450 4.7.1 <br2.vw.com>: Helo command rejected: Host
> not found; from=<traderequ...@audi.com> to=<b.m...@client.com> proto=ESMTP
> helo=<br2.vw.com>
$ dig +noall +ans +nocl +nottl -x 199.5.50.180
180.50.5.199.in-addr.arpa. PTR br2.vw.com.
$ dig +noall +auth +ans +nocl +nottl br2.vw.com.
vw.com. SOA ns1.vw.com. domainmaster.vw.com. 355100950 10800 3600 2419200
900
--
Viktor.
