Retesting should cover a range of elements to ensure comprehensive optimization:
Subject Lines: Test different versions to see which ones yield higher open rates. Email Content: Assess various types of content to determine what engages your audience the most. Design and Layout: Experiment with different designs to see which ones are more visually appealing and user-friendly. Call-to-Actions (CTAs): Test different CTAs to find out which ones drive the most conversions. Send Times: Evaluate different times and days to determine when your audience is most likely to engage with your emails.