Bring 1 cup of water to a boil. Add tea bags and steep for 10 minutes.
While tea is steeping, juice 4 of the lemons and 4 of the limes. Remove seeds from juice.
Slice the other 2 lemons and add to a pitcher with mint leaves.
Pour lemon and lime juice, simple syrup, tea, rum and cranberry juice and water into pitcher.
Mix with a spoon and refrigerate until chilled.
Serve cold with ice and pomegranate seeds.