diff --git a/server/mailserver/mail/mailmgr.go b/server/mailserver/mail/mailmgr.go
index abebe9eb..8746cac3 100644
--- a/server/mailserver/mail/mailmgr.go
+++ b/server/mailserver/mail/mailmgr.go
@@ -124,6 +124,14 @@ func (this *mailMgr) addMail(m *mail) {
 		this.wholeMails.Store(m.mailId, m)
 	} else if m.isType(constant.MAIL_TYPE_GROUP) {
 		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)
+		} else {
+			p := new(sync.Map)
+			p.Store(m.mailId, m)
+			this.personalMails.Store(m.reciver, p)
+		}
 	}
 }