Mailinglist Archive: opensuse (3337 mails)

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Re: [SLE] Stopping spam to postmaster@ account?
  • From: "Carlos E. R." <robin1.listas@xxxxxxxxxx>
  • Date: Tue, 4 Apr 2006 19:37:40 +0200 (CEST)
  • Message-id: <Pine.LNX.4.61.0604041935140.14648@xxxxxxxxxxxxxxxx>
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The Tuesday 2006-04-04 at 17:34 +0200, Sandy Drobic wrote:

> That is the only header line you can trust: it has been added by your postfix
> server. And that is telling you that your server has accepted the mail from a
> client that announced itself in HELO as "PC01" with the IP 219.142.253.248.
> Furthermore that IP has no Reverse DNS so Postfix regards the hostname as
> "unknown".
>
> dig -x 219.142.253.248 +short
>
> gives an empty result, which means it has no reverse DNS entry.

But "whois" gives some info:

netname: CHINATELECOM-BJ
country: CN
descr: CHINANET beijing province network


> 3. Reject based on ip address with a RBL that blocks those IPs. Be prepared to
> whitelist some clients that are wrongly listed in these RBLs. That is the
> reason why such RBLs are chancy.

And also some people like me who send email direct.

- --
Cheers,
Carlos Robinson
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