When the mailing is put in the "running" state, the manitou-mdx process is notified of the change (assuming it is running), and starts the actual sending in background . The user interface may then be quit without the mailing being stopped. If necessary, it can still be paused or cancelled by the user interface. Operating on a mailing is done by running the File->Mailings command which displays the list of mailings and offers some actions.

When a mailing is selected, the possible actions are:

Additionally, the Refresh action causes an immediate refresh of the list (otherwise it's automatically done every 5s).