Try different email subject line styles to find what gets the most opens. Keep an eye on your email open rate to analyze and improve performance! My day’s been ok, how’s yours? A mobile-responsive email can increase clicks by 15%. Always check mobile previews before sending out emails. Boost your email opens with a punchy subject line. Keep your email subject line short and attention-grabbing. Is anyone even reading this? We’re very font of you because you’re our type.