You can use filter groups to combine multiple conditions with both AND and OR logic:
1. Click the Filters icon in your table's top menu
2. Click "+ Add filter group"
3. Select AND as the group logic (for valid email condition)
4. Add your first filter for valid email using "is not empty"
5. Add a nested filter group with OR logic
6. Inside this nested group, add two filters:
• Emails sent equal to 0
• Emails sent is empty
Filter groups can be layered up to two levels deep, perfect for your complex filtering needs.