Sorry I meant how long time it takes for them to open an email, so from the time the email is received to the time is read...
I think what everyone it trying to say is that this doesn't seem to be a project that seems to have much relevance to anything. As a programmer (per your title you chose), there are some times where you have to tell the higher ups - be it your immediate boss or senior management or whoever - that this project just does not justify the amount of effort that will be needed to complete the task.
BUT you must be able to provide them justifiable reasons why.
In this case, I would cite such things as the following:
(1) Outlook has a "Read Notification" already built in. If someone is concerned that certain emails are not being read, they should use this feature to ensure who is and is not reading them.
(2) Preview Pane - I use preview panes, and when I get an email I "read" it. But my preview pane DOES NOT mark the item as read until I either reply to it or mark it read myself. So how will you actually determine something is read??? By the mail being marked as read?? If so, my numbers would be greatly inflated.
(3) Outlooks little popup thingy when you get a new mail - Could not think of the technical name

But again, this shows that I received an email and even gives me a brief read of it. But that doesn't mean it gets marked read or that I even read it at that time.
(4) People that are not always at their desk/email system - These persons may read their email AS SOON as they see it, but that may not be for some time after the RECEIVED it...because they are not at their email system to see it immediately.
Basically, I would not accept a project such as this. AGAIN, I stress I would provide evidence such as some of the items I listed to whoever has asked for this as to why it should not be attempted.
We here at Tek-Tips are always willing to help, but sometimes it is difficult to assist with a project or task for which you cannot provide good details. And from your posts in both threads, you don't have a good understanding of what is expected from this application.
I would talk to your project lead or boss or whoever requested this and get more details. Then, if you feel that the task/project SHOULD be completed, come back to us with some more details. :-D
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People think it must be fun to be a super genius, but they don't realize how hard it is to put up with all the idiots in the world. (Calvin from Calvin And Hobbs)
Robert L. Johnson III
CCNA, CCDA, MCSA, CNA, Net+, A+, CHDP
VB/Access Programmer