All incoming and outgoing emails are first scanned by a spam filter.
In addition to the predefined spam filter rules, you can configure custom spam filter settings for each email account.
For example, you can choose how emails that have been identified as spam should be handled. By default, they are moved to the «spam» folder. Alternatively, you can delete spam emails directly or have them forwarded to your mailbox.
More information about spam filter settings in My Panel.