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User/Host unauthenticated rejected: Host not found Why ?

807574Dec 8 2004 — edited Feb 11 2020

I send mail from sun messaging serverto @hust.edu.cn,error message:

06-Dec-2004 01:29:26.84 tcp_local Q 52 yeruiming@cgnpc.com.cn rfc822;ouyangmingde@hust.edu.cn ouyangmingde@hust.edu.cn dns;mail.hust.edu.cn (mail.hust.edu.cn ESMTP 4U Message Server [2002]) smtp;450 <jt-mail1.dnmc.com.cn>: User/Host unauthenticated rejected: Host not found ouyangmingde@hust.edu.cn: smtp;450 <jt-mail1.dnmc.com.cn>: User/Host unauthenticated rejected: Host n

But when I send mail from yahoo mail ,@hust.edu.cn can receive ok.

Why ?

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Locked on Feb 1 2005

Added on Dec 8 2004

#e-mail-calendar-collaboration, #webcenter

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