Abstract: There is provided a solution for automatically creating contact groups, a method of the solution comprising: tracking an email sending history of a user, and automatically recording email sending data, wherein the recorded email sending data comprises contact groups, each of which consists of the email addresses and all the receivers of a sent email and corresponding receiving types. There is further provided a solution for suggesting an email sending list to a user, a method of the solution comprising: retrieving one or more contact groups from the recorded email sending data when the user composes a new email; and, presenting to the user the retrieved one or more contact groups as possible sending lists.