When creating a filter in Gmail, what action can you apply to incoming messages?

When creating a filter in Gmail, one of the key actions you can apply to incoming messages is to attach a label. This feature allows you to categorize and organize your emails effectively. By applying labels, you can group similar types of messages together, making it easier to locate and manage them later. Labels can help differentiate emails based on project, priority, or sender, enhancing your email workflow.

Attaching a label is particularly useful because it keeps your inbox clean while still giving you access to your organized emails. This is a powerful tool for managing high volumes of email and ensuring important messages are easily accessible.

The other provided actions are still valid options within Gmail, but they serve different functions. Deleting messages permanently removes them from your account, which may not always be desirable. Forwarding messages to another user sends the email elsewhere, disrupting your workflow for those emails you intend to manage directly. Marking messages as unread simply indicates that they haven't been addressed, rather than organizing or categorizing them like labels do.