To manage anti-spam settings you will need to log into the Aspida webmail interface. Once there you can click on “Preferences” in the navigation pain and look for the “Anti-spam Management” section in the preferences.
Adding email addresses to the whitelist guarantees that replies or other email sent to you by these email accounts will never accidentally be marked as spam. You can also enable the option to automatically whitelist recipients of email that you send.
Adding email addresses to the blacklist guarantees that messages from those emails are marked as spam.