I would like to use SMTP to send my newsletter. I have set up a valid account in the SMTP settings area, and am trying to set the "Send via SMTP" option in the Newsletter Manager. The setting, however, does not stick. After clicking "Update Settings", the page reloads and the option is again reset to false. This is not true of any of the other controls I have tested (Default Sender Name, TinyMCE options, etc...).
There are no error messages either. Any ideas?