We have created an Microsoft Outlook Addin, which shows two buttons in Outlook, and when clicked, opens up a window with some questions, after they are filled, that information along with the actual email is sent to our webservice. The email is sent to our webservice as a MSG file.
We need exact same experience for our Lotus Notes users. I know saving the email to MSG is not possible from Lotus Notes, any other format is also acceptable that can retain the attachments in the email. You should be proficient with interacting to a .NET based webservice from Lotus Notes.
Ask for more details if required before placing the bid. The project needs to be completed within 30days of starting.