+/* Is the given address configured as one of the user's "personal" or
+ * "other" addresses. */
+static int
+address_is_users (const char *address, notmuch_config_t *config)
+{
+ const char *primary;
+ char **other;
+ unsigned int i, other_len;
+
+ primary = notmuch_config_get_user_primary_email (config);
+ if (strcmp (primary, address) == 0)
+ return 1;
+
+ other = notmuch_config_get_user_other_email (config, &other_len);
+ for (i = 0; i < other_len; i++)
+ if (strcmp (other[i], address) == 0)
+ return 1;
+
+ return 0;
+}
+
+/* For each address in 'list' that is not configured as one of the
+ * user's addresses in 'config', add that address to 'message' as an
+ * address of 'type'.
+ *
+ * The first address encountered that *is* the user's address will be
+ * returned, (otherwise NULL is returned).
+ */
+static const char *