Question

I have an application that interacts with Domino via the Domino COM object. I can send, find, delete messages without problem but getting/setting the unread status does not work. The Domino COM object has method to get the read status but it always come back as read. Anyone have a workaround that works? I ve had no success with anything I ve found searching online.

Answer 1

Actually with some more research it looks like getting/setting the unread status through the COM API doesn t work. However using the C++ API would work - and I should be able to integrate this with my existing C# project as a managed C++ project.

Answer 2

Unread marks in Domino are a funny old beast. They re derived from multiple sources: whilst you have an internal table of Notes IDs within a specific NSF, you also have an "unread journal" stored in the local Notes client s CACHE.DSK file.

All recent versions of Notes (i.e. in the last 8 / 9 years) move this unread table within the Notes client (to DESKTOP.DSK I think), and also make them server-aware, so that APIs can get a handle on unread marks.

Unfortunately, this means that you re probably out of luck with things like COM but as you ve found, the C++ API should be OK. IBM: The Architecture of Unread Marks in Lotus Notes

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