By default, when an email message gets filtered as spam, or when it matches some mail filter, it will be delivered to the Junk Mail folder of the mailbox. All filtered messages will be stored there. Messages in the Junk Mail folder will be deleted after 3, 7, 14, or 30 days. You can change this interval or disable the Junk Mail folder by navigating to the Mail Manager section > Actions button (gear icon) for the mailbox > Filters option.

You can access the Junk Folder with the Webmail program on the server or with an IMAP mail program.

IMPORTANT: If you disable the Junk Folder, filtered messages will be silently deleted, and the sender will not receive any notification about the failed delivery. We advise that you use this option with care. To be sure that you do not miss important messages, we advise that you have the Junk Folder enabled.