Re: [exim] Anti Phishing Trick

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Autor: David
Data:  
Para: exim-users
Assunto: Re: [exim] Anti Phishing Trick
Hi !!

> As far as I can see, forwarding DOES break. Suppose a server A sends a
> message from domain X to a server B, which is not configured to use SPF.
> Server B accepts the message, but the user at server B forwards the
> message to server C. Server C is into SPF, so it checks to see if server
> B is permitted to send messages from domain X; it isn't, so server C
> rejects the message. I call this broken.


Please remember that if that is the case then the owner of the domain X
has published a SPF record that clearly states that email for domain X
must only be accepted from authorized servers. The only broken thing
here is the policy of domain X, domain X could publish a softfail policy
and mail from domain X will be never rejected, no matter the amount of
forwarding servers the email has passed through.

--
Best regards ...

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