Mail header received from question

[Ronnie Regev]

After having setup mailscanner-4.29.7-1 as a mailscanner relay server, I
have noticed that all mail being scanned have the following in their header:

Received: from filter.daslweb.ca (filter.daslweb.ca.224.39.65.in-addr.arpa
[65.39.224.201] (may be forged))

Filter.daslweb.ca being my mailscanner relay server.
Why would the from server be detected as being forged?
Thanks.

Ronnie Regev
System Administrator
Microsoft Certified Professional MCP
Daslweb Inc.
ronnie at daslweb.com

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