On Fri, 2007-08-03 at 20:15 +0200, Reinhard Hainz wrote: > hi, > > is it possible to modify the mail-header (subject) within the deliver > process (maybe by a lda-plugin)? I have tried to write a simple plugin > for this, but I cannot find a way to modify the mail befor writing it > to the mailbox.
Nothing like this is directly supported. But it would be possible to kludge this with a plugin that catches mail_vfuncs.get_stream() from the dummy mbox that's created for the input and replaces the returned stream with istream_header_filter which modifies the headers as you want. Unfortunately there aren't any existing examples for this, and I don't really have time to write one. mail-log plugin replaces other functions from mail_vfuncs though.
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