Boil the water and sugar until the sugar has dissolved, turn the heat to medium low and add the raspberries.
Simmer until berries become soft; about 5 minutes and then turn off heat and let steep until cool. Strain through a mesh strainer to remove pulp and seeds before using.
To Make the Cocktail:
Mix equal parts sugar and Kosher salt for rim (optional - add a bit of lime zest)
Moisten rim of glass with lime wedge, then dip rim in sugar/salt combination. Fill glass with ice.
Mix tea, tequila, orange liqueur, lime juice, lemon juice and raspberry simple syrup in pitcher with ice and stir until cold; pour over ice in glasses. Adjust raspberry syrup as needed for desire sweetness.