It is possible that your automatic purge configuration settings do not properly account for the client user interface your end users prefer. The sudden appearance of large numbers of large transaction log files can be simply the result of a long delay in purging Delete log records. If this delay is purposefully done to accommodate users of the Connector for Microsoft Outlook or the Sync Tool, then the appearance of the large and numerous transaction log files is to be expected. No further action is required. Eventually the system will catch up. However, if your end users are using the Communications Express client, returning the automatic purge settings to their defaults should fix the problem.