diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index 268c7d25..70c84faf 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -453,7 +453,7 @@ plugin {
   sieve_before2 = dict:proxy::sieve_before;name=active;bindir=/var/vmail/sieve_before_bindir
   sieve_after = dict:proxy::sieve_after;name=active;bindir=/var/vmail/sieve_after_bindir
   sieve_after2 = /var/vmail/sieve/global_sieve_after.sieve
-  sieve_duplicate_default_period = 60m
+  sieve_duplicate_default_period = 1m
   sieve_duplicate_max_period = 7d
 
   # -- Global keys