Malformed Received-SPF header

Bernd Wurst <[email protected]> Sat, 15 Mar 2025 20:07:18 +0100
Newsgroups gmane.mail.imap.courier.general
Message-ID <[email protected]>
Hi,

a customer pointed me to the fact that SpamAssassin's SPF module does 
not fully understand Courier's Received-SPF header.

Courier sets multiple Received-SPF headers, one for every SPF check it 
makes. The records are marked with the flag "SPF=HELO" or 
"SPF=MAILFROM". This is a non standard extension to this header field.

But RFC 4408 does indeed have a flag for the same information. It's 
called identity=helo or identity=mailfrom.

Could you please add the standard header flag to this header so that the 
spam filter can understand the provided information?

kind regards,
Bernd



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