Timo Veith: > 2012/6/28 Wietse Venema <wie...@porcupine.org>: > > Timo Veith: > >> that rejects messages in the smtp dialogue if the envelope recipient > >> is unknown.
I answered that question, even though it was not about Postfix. > I have not found a way to reject a message with > a bad rcpt address based on invalid dns / mx. records. Along with my answer, I also showed you how to query a popular search engine for questions about Sendmail. I suggest that you read the first "hit" for sendmail reject unknown "domain" (follow the link to www.hansenonline.net, read the last paragraph). Wietse