In one case, the mail is being relayed through the SMTP server and then
the POP server on the i. If I read the responses correctly, then proper
SPF implementation would allow for this. I have another similar customer,
however, who uses an in-house MS mail server as their Mail Router in the i
SMTP attributes. Do you think this situation could create issues?



On 9/21/2012 10:14 AM, Chris Bipes wrote:

I imagine it could cause problems if not implemented correctly. There is a description of what Sender Policy Framework is and what it attempts to do here: [1] So if the IBM i is configured in DNS with a SPF record, it should work.

But are you talking about the i sending the emails out of the domain directly or relaying through your external mail server? Can you Pseudo diagram the mail flow to clarify?


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