The Investor Relations Team of United Internet AG is pleased to answer your questions.

Investor Relations OF United Internet AG

You can reach our team at any time by e-mail at investor-relations@united-internet.de for general questions.

You are also welcome to contact our IR officer directly:

DOMINIC GROSSMANN

Head of Investor Relations

Phone: +49 2602 / 96-1671

dgrossmann@united-internet.de

Contact details for voting rights announcements

United Internet AG
Elgendorfer Straße 57
56410 Montabaur
Germany
E-Mail: voting-rights@united-internet.de

For voting rights announcements, please preferably use the email address provided and send us the XML version in addition to the notification.