only cron errors as output

conf/cron/miab_dovecot

@@ -1,3 +1,3 @@
 #!/bin/bash
 /usr/bin/doveadm fts rescan -A > /dev/null 2>&1
-/usr/bin/doveadm fts optimize -A
+/usr/bin/doveadm fts optimize -A > /dev/null 2>&1