On Nov 30, 4:28am, Hector Santos wrote:
}
} ----- Original Message ----- (Yakov)
}
} > > The RFC says that all mail must be returnable (except for NULL address).
} >
} > [...] I would be more than happy to see the exact section
} > which requires all mail to be returnable.
}
} See RFC 2821 section 6, second paragraph:
}
} "If there is a delivery failure after acceptance of a message, the
} receiver-SMTP MUST formulate and mail a notification message. This
} notification MUST be sent using a null ("<>") reverse path in the
} envelope. The recipient of this notification MUST be the address
} from the envelope return path (or the Return-Path: line). "
}
} Thats pretty straight forward to me.
That's a requirement that the receiving server send the delivery failure.
It is not a requirement that the original sender accept it.
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