Hi Benoit

On 14 Mar 2011, at 15:31, Benoit Panizzon wrote:

> Hi Oli
> 
> A Customer just forwarded me this which is more or less a confirmation that 
> Google (and Sunrise who uses Google Mail Services) do penalize emails from 
> domains with no SPF:
> 
> http://www.google.com/support/a/bin/answer.py?hl=de&answer=33786
> 
> "Wenn für Ihre Domain kein SPF-Datensatz vorhanden ist, werden Nachrichten 
> von 
> Ihren Nutzern möglicherweise von einigen Empfängerdomains abgelehnt, da nicht 
> bestätigt werden kann, dass die Nachrichten von einem autorisierten 
> Mailserver stammen."

Isn't this the other way round? I think Google wants to tell us, this might 
happen on some domains ("von einigen Empfängerdomains abgelehnt"), not that 
they're filtering themselves. 

Actually if you look at headers ("Received-SPF" and "Authentication-Results") 
from e-mails processed by Google, they check SPF but in my experience nothing 
special happens.

On the other side, it's quite suspicious if one sends e-mails from a host with 
no reference whatsoever to the domain they're relaying for. For example using 
your Bluewin account to send messages from @gmail.com. I understand ISPs 
increasing the spam score on such e-mails, but blocking it would be too much. 

Just my 0.02€


Cheers

> 
> Is google switzerland reading this list?
> 
> Do we really have to start using "v=spf1 +all" to make google accept our 
> emails?
> 
> Mit freundlichen Grüssen
> 
> Benoit Panizzon
> -- 
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Mathias Seiler

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