> For the complete documentation index, see [llms.txt](https://docs.emaildelivery.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaildelivery.com/docs/funnels/augment-your-subject-line-with-a-preheader.md).

# Augment your subject line with a preheader

![](/files/oMPO6z95nFyn2fQkOkUO)

{% hint style="info" %}
The preheader shows preview text to your broadcast recipients before they open the message, effectively extending the subject line
{% endhint %}

Here's how dropbox utilizes the preheader to explain their product's value

![](/files/2fRfyVrrgR3p6V6t2doe)

The preheader is best used to add additional intrigue and personalization 

![](/files/31hLGnrsoDf2Cgr1C3SQ)