3 files changed, 9 insertions, 0 deletions
diff --git a/src/net/eathena/mailhandler.cpp b/src/net/eathena/mailhandler.cpp
index ea420cfc4..23e959538 100644
--- a/src/net/eathena/mailhandler.cpp
+++ b/src/net/eathena/mailhandler.cpp
@@ -113,4 +113,10 @@ void MailHandler::setAttach(const int index, const int amount)
     outMsg.writeInt32(amount, "amount");
 }
 
+void MailHandler::resetAttach(const int flag)
+{
+    MessageOut outMsg(CMSG_MAIL_RESET_ATTACH);
+    outMsg.writeInt16(static_cast<int16_t>(flag), "flag");
+}
+
 }  // namespace EAthena
diff --git a/src/net/eathena/mailhandler.h b/src/net/eathena/mailhandler.h
index b6d2b9080..1b4f9f2b5 100644
--- a/src/net/eathena/mailhandler.h
+++ b/src/net/eathena/mailhandler.h
@@ -50,6 +50,8 @@ class MailHandler final : public MessageHandler, public Net::MailHandler
 
         void setAttach(const int index, const int amount) override final;
 
+        void resetAttach(const int flag) override final;
+
     protected:
         void processMailOpen(Net::MessageIn &msg) const;
 };
diff --git a/src/net/eathena/protocol.h b/src/net/eathena/protocol.h
index d28806559..70ffd74e5 100644
--- a/src/net/eathena/protocol.h
+++ b/src/net/eathena/protocol.h
@@ -372,6 +372,7 @@
 #define CMSG_MAIL_DELETE_MESSAGE     0x0243
 #define CMSG_MAIL_RETURN_MESSAGE     0x0273
 #define CMSG_MAIL_SET_ATTACH         0x0247
+#define CMSG_MAIL_RESET_ATTACH       0x0246
 
 #define SMSG_SOLVE_CHAR_NAME         0x0194
 #define SMSG_SKILL_CASTING           0x07fb