--- a/dovecot-example.conf	Thu Dec 28 18:07:19 2006 +0200
+++ b/dovecot-example.conf	Thu Dec 28 18:27:53 2006 +0200
@@ -280,6 +280,11 @@
 # which use separate caches for them, such as OpenBSD.
 #mmap_no_write = no
 
+# Rely on O_EXCL to work when creating dotlock files. The default is to use
+# hard linking. O_EXCL makes the dotlocking faster, but it doesn't always
+# work with NFS.
+#dotlock_use_excl = no
+
 # Don't use fsync() or fdatasync() calls. This makes the performance better
 # at the cost of potential data loss if the server (or the file server)
 # goes down.