To ensure SSIS can communicate with you via email we recommend that you whitelist the school domain ssis.edu.vn
Open your gmail account.
1. In the search bar type from:(ssis.edu.vn)
2. Click the dropdwon menu (far right of the search bar)
3. Click the Create filter with this search (bottom right)
4. Click the box next to Never send to Spam. Then click the blue Create Filter button (Lower left)