diff --git a/sendmail.go b/sendmail.go
index e58c098..e85ceb2 100644
--- a/sendmail.go
+++ b/sendmail.go
@@ -78,7 +78,7 @@ func (m *SendMailRequest) Execute() error {
 
 	// TLS config
 	tlsconfig := &tls.Config{
-		InsecureSkipVerify: viper.GetBool("SMTP_VERITY_CERT"),
+		InsecureSkipVerify: viper.GetBool("SMTP_SKIP_VERIFY_CERT"),
 		ServerName:         smtpServerHost,
 	}