+/** There is an outboxes/<account-name>/outbox/ folder for each account,
+ * though we merge them so that the user sees only one outbox.
+ */
+#define MODEST_PER_ACCOUNT_LOCAL_OUTBOX_FOLDER_ACCOUNT_ID_PREFIX "outboxes"
+#define MODEST_PER_ACCOUNT_LOCAL_OUTBOX_FOLDERS_MAILDIR MODEST_PER_ACCOUNT_LOCAL_OUTBOX_FOLDER_ACCOUNT_ID_PREFIX
+