When attempting to send an email to a query-based Constituent recipient list or refresh a list of this type, the job fails with the following error message:
Error refreshing list. Details: [System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
If your organization hosts your Raiser's Edge database, please consult with your IT department. This error may be caused by a firewall or anti-virus software on the web server stopping communication while the list or email messages were loading. Blackbaud Support cannot assist with firewall or network related behaviors.