United Internet AG

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  Notification of voting rights transmitted by euro adhoc. The issuer is
  responsible for the content of this announcement.
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Person/company obliged to make the notification: 

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Name:    United Internet AG
Place:   Montabaur
State:   Germany 

Company data:
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Name:    United Internet AG
Address: Elgendorfer Straße 57, 56410 Montabaur
Place:   Montabaur
State:   Germany 

United Internet AG, Elgendorfer Str. 57, 56410 Montabaur, Germany herewith
notifies pursuant to sec. 26 para. 1 sentence 2 WpHG that its amount of treasury
shares has exceeded the threshold of 5 % on 17. February 2010, and at that date
amounted to 5.02 % (12,058,932 shares). Of these shares, 0.06% (corresponding to
151,210 shares) were held through a person acting in his own name but on behalf
of United Internet AG. 

end of announcement                               euro adhoc
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Further inquiry note:

Branche: Telecommunications Services
ISIN:    DE0005089031
WKN:     508903
Index:   Midcap Market Index, TecDAX, CDAX, HDAX, Prime All Share,
         Technology All Share
Börsen:  Frankfurt / regulated dealing/prime standard
         Berlin / free trade
         Hamburg / free trade
         Stuttgart / free trade
         Düsseldorf / free trade
         Hannover / free trade
         München / free trade