diff --git a/signing.go b/signing.go
index 4d1bcff..caeccbc 100644
--- a/signing.go
+++ b/signing.go
@@ -66,7 +66,7 @@ func initSigning(cfg *config.Config) error {
 		encryptionimpl.NewEncryptionImpl(),
 		pi,
 	)
-
+	cfg.Domain.Config.IsTestEnvironment = false // 强制生产环境
 	vcService := vcservice.NewVCService(
 		repositoryimpl.NewVerificationCode(
 			mongodb.DAO(cfg.Mongodb.Collections.VerificationCode),
diff --git a/signing/infrastructure/smtpimpl/impl.go b/signing/infrastructure/smtpimpl/impl.go
index aa53e64..78fad67 100644
--- a/signing/infrastructure/smtpimpl/impl.go
+++ b/signing/infrastructure/smtpimpl/impl.go
@@ -16,7 +16,8 @@ type Config struct {
 func (cfg *Config) SetDefault() {
 	if cfg.Host == "" || cfg.Port <= 0 || cfg.Platform == "" {
 		cfg.Port = 465
-		cfg.Host = "smtp.exmail.qq.com"
+		// cfg.Host = "smtp.exmail.qq.com"
+		cfg.Host = "smtp.qq.com"
 		cfg.Platform = "smtp"
 	}
 }