# Email (Custom) - List mailboxes action
The List mailboxes action lists all mailboxes in the account using the IMAP protocol. This action is available only with IMAP.
# Input
This action doesn't require any input fields.
# Output
| Output field | Description | 
|---|---|
| Mailboxes | A list of mailboxes in the account. | 
 Last updated: 9/18/2025, 8:01:19 PM