For Web Hosting customers with a 1&1 IONOS email address
Do you often receive important emails from email addresses that you want to make sure are never treated as spam? With the whitelist function of WebMail, you can set this easily and reliably.
Log in to 1&1 IONOS WebMail.
Click the menu icon (System Menu) and then click Edit Settings.
Click on E-Mail > Anti-SPAM, then under "Personal lists" under "Whitelist" on Display and then on Add.
Enter the email addresses you want to whitelist and click Add. Repeat the process for additional email addresses. The changes are saved automatically.
Hint: You can also define complete address ranges here. For example, if you want to receive all emails in the @domain.com address range without having them checked for spam, enter this in the *@domain.com format. The asterisk serves as a wildcard.