diff --git a/server/email.go b/server/email.go
index 4cfa37be6396f7c7ed2a88db0cebc8d28dc1848e..2a403dd6801a23d0d600b5504f1b5f20344725c5 100644
--- a/server/email.go
+++ b/server/email.go
@@ -53,8 +53,9 @@ 	header.SetSubject(fmt.Sprintf("[%s] GraphQL query error: %v",
 		config.ServiceName(ctx), origErr))
 
 	conf := config.ForContext(ctx)
-	to, ok := conf.Get("mail", "error-to")
-	if !ok {
+	to, _ := conf.Get("mail", "error-to")
+	if to == "" {
+		log.Println("Warning: mail::error-to is not set")
 		return fmt.Errorf("internal system error")
 	}
 	rcpt, err := gomail.ParseAddress(to)