Disabling account e-mail fields if e-mail service is disabled (verification e-mail couldn't be sent).

src/auth.js

@@ -91,6 +91,10 @@ async function hashPassword(password) {
 }
 
 export async function sendEmailVerification(user, customEmail, trigger) {
+	if (!config.email.enabled) {
+		throw new HttpError('E-mail verification is disabled', 503);
+	}
+
 	if (!user) {
 		throw new HttpError('No user provided', 401);
 	}