[afnog] Support Please - MCA-T Domain

[Makan SIMAGA]

Hello Frank,

You must : 
1 - Verify if the IP address of your servers are Forward Confirmed reverse DNS (FCrDNS).
The "dig mx your domain" must return your mail server name and IP for your domain
And the "dig -x mail_server_IP" must return exactly your mail server name.
2- Create SPF record for your domain. You can use the wizard (http://old.openspf.org/wizard.html)
3- enable Sender-ID Exchange. Try this link (http://technet.microsoft.com/en-us/library/aa997136.aspx)

Makan SIMAGA



 


-----Message d'origine-----
De : afnog-bounces at afnog.org [mailto:afnog-bounces at afnog.org] De la part de Frank Habicht
Envoyé : mardi 10 février 2009 17:50
À : SM
Cc : afnog at afnog.org
Objet : Re: [afnog] Support Please - MCA-T Domain

On 02/10/09 20:14, SM wrote:
> Hi Frank,
> At 08:17 10-02-2009, Frank Habicht wrote:
>> Just thought I'd share ...
> 
> See comments inline.
inline...

> 
> The reason for the message rejection is clear:
> 
>   Reasons for rejection may be related to content with spam-like 
> characteristics
>   or IP/domain reputation problems.

"may be" is not very clear. other MX give 5xx errormessages like 
http://...spamcop....?ip=... or a spamassassin score. this one says "may 
be".


> Are you the network admin or the ISP for that customer?  Is your network 
> a source of email abuse?
I'm the ISP and the client runs their own MS exchange (installed 
recently by others). Jacob the network admin of client had contacted me...
Their IP clears on spamcop and spamhaus. The free site for checking one 
IP at many RBLs is no longer (free). any alternatives?

> The URL mentioned in the rejection message has information on how to 
> resolve the problem or at least provides you with a means to contact 
> Hotmail.

wouldn't it be easier to just stop sending emails to them? They don't 
make much effort to receive all legit email. Can I be confident they'd 
accept an email from me?

Frank

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