diff --git a/server/mailserver/mail/mailmgr.go b/server/mailserver/mail/mailmgr.go
index 72109dd6..39285145 100644
--- a/server/mailserver/mail/mailmgr.go
+++ b/server/mailserver/mail/mailmgr.go
@@ -139,7 +139,10 @@ func (this *mailMgr) addMail(m *mail) {
 		this.groupMails.Store(m.mailId, m)
 	} else if m.isType(constant.MAIL_TYPE_PERSONAL) {
 		if hum, ok := this.personalMails.Load(m.reciver); ok {
-			(hum.(*sync.Map)).Store(m.mailId, m)
+			(hum.(*sync.Map)).Range(
+				func (k, v interface{}) bool {
+					return true
+				})
 		} else {
 			p := new(sync.Map)
 			p.Store(m.mailId, m)