Do you have the right settings in place to avoid losing information when a communication log is created using the Outlook Connector module?
Outlook Connector can be set up to create communication logs that only contain 'plain text.' This setting avoids adding large records to the database, such as images that are attached or embedded in an email. However, only uploading 'plain text' prevents items such as hyperlinks from having the underlying URL included in the log. Allow all the information in the email to be included in communication logs by updating your settings in either System Preferences or Personal Preferences.