diff --git a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_5.0_Salvation/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_5.0_Salvation/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_5.0_Salvation/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_5.0_Salvation/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_5.5_EtinasFate/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_5.5_EtinasFate/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_5.5_EtinasFate/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_5.5_EtinasFate/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_6.0_Fafurion/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_6.0_Fafurion/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_6.0_Fafurion/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_6.0_Fafurion/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index b18ebccdf3..c274830636 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -67,10 +67,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java b/L2J_Mobius_Classic_2.3_SevenSigns/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
index cba654add8..e52b1847bd 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/java/com/l2jmobius/gameserver/instancemanager/CustomMailManager.java
@@ -68,10 +68,10 @@ public class CustomMailManager
 						final List<ItemHolder> itemHolders = new ArrayList<>();
 						for (String str : items.split(";"))
 						{
-							if (str.toLowerCase().contains(" "))
+							if (str.contains(" "))
 							{
-								final String itemId = str.toLowerCase().split(" ")[0];
-								final String itemCount = str.toLowerCase().split(" ")[1];
+								final String itemId = str.split(" ")[0];
+								final String itemCount = str.split(" ")[1];
 								if (Util.isDigit(itemId) && Util.isDigit(itemCount))
 								{
 									itemHolders.add(new ItemHolder(Integer.parseInt(itemId), Long.parseLong(itemCount)));