diff --git a/bundles/dovecot/README.md b/bundles/dovecot/README.md
index 246273c..3361466 100644
--- a/bundles/dovecot/README.md
+++ b/bundles/dovecot/README.md
@@ -1,7 +1,10 @@
 DOVECOT
 =======
 
-rescan index: https://doc.dovecot.org/configuration_manual/fts/#rescan
+rescan index
+------------
+
+https://doc.dovecot.org/configuration_manual/fts/#rescan
 
 ```
 doveadm fts rescan -u 'i@ckn.li'
diff --git a/bundles/dovecot/files/dovecot.conf b/bundles/dovecot/files/dovecot.conf
index 5b76378..a9203d1 100644
--- a/bundles/dovecot/files/dovecot.conf
+++ b/bundles/dovecot/files/dovecot.conf
@@ -34,6 +34,7 @@ passdb {
   driver = sql
   args = /etc/dovecot/dovecot-sql.conf
 }
+# use sql for userdb too, to enable iterate_query
 userdb {
   driver = sql
   args = /etc/dovecot/dovecot-sql.conf
diff --git a/bundles/mailserver/README.md b/bundles/mailserver/README.md
index 0099053..0e6e58c 100644
--- a/bundles/mailserver/README.md
+++ b/bundles/mailserver/README.md
@@ -1 +1,12 @@
-echo -n 'WarumGehtDasNicht?' | argon2 FAPf+gTwqTRr+3H0cDktqw
+mailserver
+==========
+
+argin2 hashes
+-------------
+
+`echo -n 'WarumGehtDasNicht?' | argon2 FAPf+gTwqTRr+3H0cDktqw`
+
+logs
+----
+
+`journalctl -u postfix@-.service -u dovecot.service -u rspamd.service -o cat -f`