The preview pane is a feature in email clients that allows users to view a portion of an email before they decide to open it fully. It typically appears to the right or below the list of emails in the inbox, and shows a preview of the selected email's content.
Email marketers need to be mindful of the preview pane, as it can have a significant impact on the recipient's decision to open the email or not. Since the preview pane is often limited in size, it's essential to optimize the content that appears there to make it enticing enough for the recipient to open the email fully. This includes crafting a compelling subject line, including a clear and concise preheader text, and placing the most critical content at the top of the email.
