diff --git a/internal/rpc/office/office.go b/internal/rpc/office/office.go
index 816c272c7..753fca492 100644
--- a/internal/rpc/office/office.go
+++ b/internal/rpc/office/office.go
@@ -33,7 +33,7 @@ type officeServer struct {
 
 func NewOfficeServer(port int) *officeServer {
 	log.NewPrivateLog(constant.LogFileName)
-	ch := make(chan tagSendStruct, 10000)
+	ch := make(chan tagSendStruct, 100000)
 	return &officeServer{
 		rpcPort:         port,
 		rpcRegisterName: config.Config.RpcRegisterName.OpenImOfficeName,
@@ -106,7 +106,7 @@ func (s *officeServer) sendTagMsgRoutine() {
 		select {
 		case v := <-s.ch:
 			msg.TagSendMessage(v.operationID, v.user, v.userID, v.content, v.senderPlatformID)
-			time.Sleep(time.Millisecond * 500)
+			time.Sleep(time.Millisecond * 100)
 		}
 	}
 }
@@ -251,7 +251,7 @@ func (s *officeServer) SendMsg2Tag(_ context.Context, req *pbOffice.SendMsg2TagR
 		resp.CommonResp.ErrCode = constant.ErrDB.ErrCode
 		return resp, nil
 	}
-
+	var successUserIDList []string
 	for _, userID := range userIDList {
 		t := tagSendStruct{
 			operationID:      req.OperationID,
@@ -263,6 +263,7 @@ func (s *officeServer) SendMsg2Tag(_ context.Context, req *pbOffice.SendMsg2TagR
 		select {
 		case s.ch <- t:
 			log.NewDebug(t.operationID, utils.GetSelfFuncName(), "msg: ", t, "send success")
+			successUserIDList = append(successUserIDList, userID)
 		// if channel is full, return grpc req
 		case <-time.After(1 * time.Second):
 			log.NewError(t.operationID, utils.GetSelfFuncName(), s.ch, "channel is full")
@@ -274,9 +275,9 @@ func (s *officeServer) SendMsg2Tag(_ context.Context, req *pbOffice.SendMsg2TagR
 
 	var tagSendLogs db.TagSendLog
 	var wg sync.WaitGroup
-	wg.Add(len(userIDList))
+	wg.Add(len(successUserIDList))
 	var lock sync.Mutex
-	for _, userID := range userIDList {
+	for _, userID := range successUserIDList {
 		go func(userID string) {
 			defer wg.Done()
 			userName, err := im_mysql_model.GetUserNameByUserID(userID)