Hi, I connected to smtp.gmail.com:587 with commands: EHLO StartTLS Auth
But MAIL TO: <any_email_address> or RCPT TO: <any_email_address> always get 250 as valid email. I want get 250 if valid and 5xx if invalid. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/97e42822-e990-4e73-8563-e46a48f84f24n%40googlegroups.com.