diff --git a/README.md b/README.md
index ecb2f00..7d2eaca 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,32 @@
 # trash-email-alias
 a dovecot sieve 's script and configuration to generate random alias
+
+# usage
+Just send an email to the configured em-mail generator. It will respond you and indicate what is your alias.
+# Configure
+
+Need dovecot and dovecot pigeon hole.
+On /etc/dovecot/dovecot.conf my plugin section looks like:
+
+  plugin {
+    (...)
+    sieve = ~/dovecot.sieve
+    sieve_after = /var/www/vmail/sieve/global.sieve
+    sieve_dir = ~/sieve
+    #vacation
+    sieve_extensions = +vacation-seconds
+    sieve_vacation_min_period = 30m
+    sieve_vacation_default_period = 10d
+    sieve_vacation_max_period = 30d
+
+    #ExtPrograms
+    sieve_plugins = sieve_extprograms
+    sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.filter +vnd.dovecot.execute
+
+    sieve_pipe_bin_dir = /etc/sieve-pipe/bin
+    sieve_filter_bin_dir = /etc/sieve-pipe/filter
+    sieve_execute_bin_dir = /etc/sieve-pipe/execute
+    (...)
+  }
+
+ 
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