From 621235d8da11aaf784a1321d849a940e380e8219 Mon Sep 17 00:00:00 2001
From: andryyy <andre.peters@debinux.de>
Date: Mon, 9 Jan 2017 12:37:39 +0100
Subject: [PATCH] Lowercase tag name "eXaMpLe" to "example" if folder "eXaMpLe"
 does not exist, else move to folder "eXaMpLe"

---
 data/conf/dovecot/sieve_after | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/data/conf/dovecot/sieve_after b/data/conf/dovecot/sieve_after
index d668a94c..0b43dbcf 100644
--- a/data/conf/dovecot/sieve_after
+++ b/data/conf/dovecot/sieve_after
@@ -7,6 +7,18 @@ require "envelope";
 if header :contains "X-Spam-Flag" "YES" {
   fileinto "Junk";
 }
-if allof (envelope :detail :matches "to" "*", header :contains "X-Moo-Tag" "YES") {
-  fileinto :create "INBOX/${1}";
+
+if allof (
+  envelope :detail :matches "to" "*",
+  header :contains "X-Moo-Tag" "YES",
+  mailboxexists "INBOX/${s}"
+  ) {
+    fileinto "INBOX/${s}";
+}
+elsif allof (
+  envelope :detail :matches "to" "*",
+  header :contains "X-Moo-Tag" "YES"
+  ) {
+    set :lower "s" "${1}";
+    fileinto :create "INBOX/${s}";
 }