Add docker-mailserver (default config to track changes)
diff --git a/.gitignore b/.gitignore
index 7c47734..9d440bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,5 +10,10 @@
 /gerrit/index/
 /logs/certbot/
 /logs/gerrit/
+/logs/mail/
+/logs/mail-supervisor/
 /logs/nginx/
 /logs/simpleid/
+/mail/config/
+/mail/data/
+/mail/state/