diff --git a/internal/logic/public/user/bindEmailWithVerificationLogic.go b/internal/logic/public/user/bindEmailWithVerificationLogic.go
index 6578124..2f69725 100644
--- a/internal/logic/public/user/bindEmailWithVerificationLogic.go
+++ b/internal/logic/public/user/bindEmailWithVerificationLogic.go
@@ -209,13 +209,13 @@ func (l *BindEmailWithVerificationLogic) refreshBindSessionToken(userId int64) (
 }
 
 // tryGrantTrialOnEmailBind grants trial subscription to the email user (family owner)
-// if EnableTrialEmailWhitelist is on and the email domain matches.
+// if EnableTrial is on and (if whitelist is enabled, email domain must match).
 func (l *BindEmailWithVerificationLogic) tryGrantTrialOnEmailBind(ownerUserId int64, email string) {
 	rc := l.svcCtx.Config.Register
-	if !rc.EnableTrial || !rc.EnableTrialEmailWhitelist {
+	if !rc.EnableTrial {
 		return
 	}
-	if !auth.IsEmailDomainWhitelisted(email, rc.TrialEmailDomainWhitelist) {
+	if rc.EnableTrialEmailWhitelist && !auth.IsEmailDomainWhitelisted(email, rc.TrialEmailDomainWhitelist) {
 		l.Infow("email domain not in trial whitelist, skip",
 			logger.Field("email", email),
 			logger.Field("owner_user_id", ownerUserId),