Closed Alert is Generated when importing

Hi,
I have a alert which is currently with "CLOSED" status for activities. However, when I import activities from MSExcel, using projeqtor import functionality, the e-mail warning/alert for activities is generated (it seems that it does not considere that the alert status is "closed").

The alert was generated for a few activities which were created (via xls import) with "validated start date" = "29-jun-2015" and "validated end date" = "03-jul-2015".


My alert is configured as below:
- item: activity
- related to validated end date
- warning: 10 days
- alert: 3 days
- status: closed
- send e-mail to: responsible and project manager


Kind regards.
Francis