Hi,

since 2 day's i run postfix instead of sendmail, but now i got a lot of
error's like this:
-----
 reject: RCPT from unknown[57.200.127.253]: 450
<s-fr-evy-hub2.accor-hotels.com>: Helo command rejected: Host not found;
from=<Webreservationaccor-hotels.com>
to=<manuela.toelzeractive-knowledge.de>
-----

So i startet nslookup
-----
#nslookup
> 57.200.127.253
*** dns1.active-knowledge.de can't find 57.200.127.253: Non-existent
host/domain
> s-fr-evy-hub2.accor-hotels.com
*** dns.1active-knowledge.de can't find s-fr-evy-hub2.accor-hotels.com:
Non-existent host/domain
> set q=mx
> accor-hotels.com
Server: sharky.inf.fh-rosenheim.de
Address: 141.60.120.105

Non-authoritative answer:
accor-hotels.com preference = 100, mail exchanger =
mail2.accor-hotels.com

Authoritative answers can be found from:
accor-hotels.com nameserver = public-dns.accor-hotels.com
accor-hotels.com nameserver = ns1.equant.net
accor-hotels.com nameserver = ns2.equant.net
accor-hotels.com nameserver = ns3.equant.net
mail2.accor-hotels.com internet address = 57.200.127.67
public-dns.accor-hotels.com internet address = 57.200.127.66

>
-----
Means this that the person who sent the email from accor-hotels.com had
an misconfigured client ?
Could it be that the sender from accor-hotels.com had is own pc entered
as outgoing smtp server in his email program ?
What can i do that those emails are delivered to my people at
active-knowledge.de ?

Please help.

-Armin Irger

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