Ruth Ivimey-Cook writes:
If Abhilash has a starting point,
IIRC it was quite primitive, and probably not at the the individual message level, more like list level.
and there is acceptance from others to integrate something of this sort, then I could possibly help make it happen.
If you're that interested, I'd say get started, at least on sketching out requirements. There will probably be some nitpicking about code style and the like, and there may be delays in integrating stuff due to the peanut gallery contributing requirements that we decide we want in the feature, but I don't think there's a problem with the basic idea.
We won't be putting tracking pixels and the like in outgoing posts, but as long as it's internal data already generated by normal Mailman operation, I would be somewhere between very surprised and shocked (SHOCKED, I tell you!) if it weren't accepted.
Steve