I think it should be possible to filter on the presence/absence of specified headers. E.g., Yahoo adds something like X-Rocket-Spam: w.x.y.z X-YahooFilteredBulk: w.x.y.z to mails it thinks are spam/bulk mail. I'd like to use that to filter these messages, but the current mail infrastructure doesn't allow me to.
isn't it just "add custom header"?
"Add custom header" allows you to filter on the value of the text in that header, it doesn't allow you to simply test if the header is present or not. I tried it, but it doesn't work.
*** This bug has been marked as a duplicate of 121214 ***
Status: UNCONFIRMED → RESOLVED
Last Resolved: 16 years ago
Resolution: --- → DUPLICATE
marking verified as a duplicate
Status: RESOLVED → VERIFIED
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