Preheat the oven to 350°F (175°C). Grease a loaf pan.

In a mixing bowl, whisk together the flour, baking powder, baking soda, salt, and poppy seeds.

In another bowl, cream the softened butter and sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition.

Stir in the milk, lemon juice, and lemon zest until combined.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Pour the batter into the prepared loaf pan.

Bake for 45-50 minutes, or until a toothpick inserted into the center comes out clean.

Let the bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely.