-----Original Message-----
From: gaven(_at_)gavdogg(_dot_)net [mailto:gaven(_at_)gavdogg(_dot_)net]
Sent: Wednesday, September 07, 2005 4:34 PM
To: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Subject: [spf-discuss] Is SRS really necessary?
If a domain has its mail sent out by another domain,
wouldn't the "include" parameter of an SPF record negate the
need for SRS?
For example, if "domaina.com" routes outbound mail to
"isp.com" and has an SPF record of "include:isp.com -all"
would that not pass the SPF test when "isp.com" attempts to
deliver "domaina.com"'s messages assuming "isp.com" has a
valid SPF record?
The problem is that receivers set up forwarders. Not senders.
There is no way to know in advance if your message will be forwarded. I
supposed if you have one persistent problematic case, you could solve it
this way, but it's not a general solution.
I think a better solution is that recievers should whitelist forwarders from
SPF checks since the forwarder is acting as an agent of the reciever.
Scott K
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