the pre-header is important for several reasons:

1. Attract attention

Because the pre-header is displayed directly below the subject line, it can help grab the recipient's attention and pique their interest. A well-written preheader can lead to the recipient opening the email and reading on.

2. Summarize content:

The preheader provides an opportunity to briefly summarize the content of the email or preview the main benefit or offer of the email. This helps the recipient quickly decide if the email is relevant to them and if they want to open it.

3. Provide more information:

The limited space in the subject line can sometimes be insufficient to convey all the important information. The preheader allows you to provide additional information, such as special offers, expiration dates, or call-to-action instructions, to motivate the recipient to take action.

4. Personalization:

The preheader can also include personalized information to create a customized appeal and relevance to the recipient. By including dynamic variables such as the recipient's name or specific information from their profile, you can increase awareness and build stronger engagement.