If you repeatedly receive unwanted or advertising spam emails from a certain sender, you can set up a list of Blocked Senders in IONOS Webmail (formerly called a blacklist). Such a list ensures that these emails are filtered directly into the spam folder and no longer appear in your inbox.

  • Log in to Webmail.
  • In the main navigation bar, click on the gear icon in the top-right corner.
  • In the left-side navigation, click on Mail > Anti-SPAM, and then under Personal Lists > Blocked Senders, click on Show.

  • Enter the email addresses that you want to include in the Blocked Senders list and click Add. Repeat the process for additional email addresses. The changes are automatically saved.

Additional Information

You can also define all email addresses for specific domains at once. For example, if you want to receive all emails from the domain @example.com without having them checked for spam first, you can specify this in the format *@example.com. The asterisk serves as a wildcard here, meaning it will cover anything that comes before the @ symbol.