Open InMails are a valuable LinkedIn feature that lets you connect with prospects who have an Open Profile. You can send messages directly to their inbox without a connection request, making it easier to reach individuals outside your network.

Open InMails have no character limit, enabling you to create detailed messages with subject lines for added context, which helps capture your prospects' attention more effectively.

As a user, you can send up to 800 Open InMails each month. However, the number of prospects you can reach may vary based on your audience's specificity, and you may find fewer individuals with Open Profiles that meet your criteria than anticipated.