Hi list, after a tip from a colleague I've installed notmuch over the weekend, and I'm impressed with its speed and flexibility to the point that I'd really like to switch to using it exclusively. To be able to do that there is one thing I need that I haven't figured out how to do yet, or indeed if it's possible at all currently: Is there a way to search in arbitrary headers? From initial experimentation, it seems not: I can search in headers that are explicitly indexed, such as subject:, to: and from:, or in the body text, but it does not seem that the raw message is indexed, and I've not found a way to add additional indexes. My specific use case is that I get a lot of automated mail from launchpad, which uses headers like 'X-Launchpad-Message-Rationale' to indicate why a particular message is being delivered to me. Thunderbird allows me to filter on arbitrary headers, which means I can divert messages that are unlikely to need my attention so that they don't hit my inbox. I realize that indexing the raw message is probably not a good idea, since for instance the routing of a particular message is unlikely to be of interest, but I was wondering if there is a way to specify additional headers to be indexed by notmuch, or if not, if others would find this a worthwhile addition? -- eric casteleijn https://code.launchpad.net/~thisfred http://thisfred.posterous.com/