--- a/src/lib-storage/index/maildir/maildir-save.c	Thu Oct 23 18:59:00 2008 +0300
+++ b/src/lib-storage/index/maildir/maildir-save.c	Thu Nov 06 15:35:37 2008 +0200
@@ -410,8 +410,13 @@ int maildir_save_finish(struct mail_save
 
 	if (!ctx->mbox->ibox.fsync_disable) {
 		if (fsync(ctx->fd) < 0) {
-			mail_storage_set_critical(STORAGE(ctx->mbox->storage),
-						  "fsync(%s) failed: %m", path);
+			if (ENOSPACE(errno)) {
+				mail_storage_set_error(STORAGE(ctx->mbox->storage),
+						       "Not enough disk space");
+			} else {
+				mail_storage_set_critical(STORAGE(ctx->mbox->storage),
+					"fsync(%s) failed: %m", path);
+			}
 			ctx->failed = TRUE;
 		}
 	}