Multiple project email workaround
From Eventum
Problem
Currently, Eventum requires that each project have its own email address. However, this is not always feasible or necessary.
Solution
Setup one of the projects with the single email address using the "Manage Email Accounts" feature of the "Administration" section (available only to the admin user). Use "Manage Email Accounts" to fake email addresses for the remaining projects. Ensure that all projects are set up to send out emails using the single email address (in their respective settings pages).
When emails are sent out by Eventum, replies will automatically be associated with the correct issue, regardless of project.
Drawbacks
Since the real email is associated with only one project, unassociated emails (or auto-created issues) are only visible in that project. Thus, the email address can't be realistically used as a source of new issues.
