diff --git a/server/mailserver/common/types.go b/server/mailserver/common/types.go
index 145271d5..fd052c99 100644
--- a/server/mailserver/common/types.go
+++ b/server/mailserver/common/types.go
@@ -10,6 +10,7 @@ type App interface {
 type Player interface {
 	Lock()
 	UnLock()
+	GetHashCode() uint32
 }
 
 type PlayerMgr interface{
diff --git a/server/mailserver/mail/mailmgr.go b/server/mailserver/mail/mailmgr.go
index fc88a55b..af495338 100644
--- a/server/mailserver/mail/mailmgr.go
+++ b/server/mailserver/mail/mailmgr.go
@@ -49,3 +49,7 @@ func (this *mailMgr) caGetAttachment(common.Player, *gin.Context) {
 func (this *mailMgr) caDeleteMails(common.Player, *gin.Context) {
 
 }
+
+func (this *mailMgr) traversePlayerMail(hum common.Player, cb func(*mail) bool) {
+
+}
diff --git a/third_party/q5 b/third_party/q5
index 3eeb9788..9ab4817e 160000
--- a/third_party/q5
+++ b/third_party/q5
@@ -1 +1 @@
-Subproject commit 3eeb9788ce26daaa6aa2053ea27dad3a01638804
+Subproject commit 9ab4817ec5c2ac6bae916ad3f7249f7fc34ad6f5