On Sun, Oct 26, 2014 at 10:40 PM, Thomas Mittelstaedt < [email protected]> wrote:
> There exists an evolution plug-in for user defined email headers. It's > part of the evolution-plugins package, at least on the old ubuntu 10.04 > version that I still use. Should still be available, though, and may > achieve what you need. > If you mean the "Custom Header" plugin it unfortunately does not help me. The problem is that I need to keep an existing header from the incoming mail and process that header when I reply to the mail (while piping the message through my own code when sending using an Outgoing filter in Evo). > Another idea that comes to my mind, is to use message filters to for > incoming and outgoing messages. > I use an Outgoing filter. That is how I pipe the message through my own code for processing when sending. > You may also go after the "Message-Id" and "References" headers. The > first of which is included in messages, at least those sent from > evolution. > Aha, I see that while the Message-id header is changed each time, the References header 'references' all previous Message-id values, in this format: References: <first-message-id@someplace> <second-message-id@someplace> I could simply sneak in the ticket ID in the References header as long as this fake message-id is guaranteed to be unique, eg: References: <TIMESTAMP.TICKETID@mydomain> <first-message-id@someplace> <second-message-id@someplace> Will try this. Thanks a bunch for the pointers, Per
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