Jika terjadi gagal kirim dengan pesan seperti ini knapa ya pak?
terimakasih...


This is the mail system at host smtp.hypernet.co.id.



I'm sorry to have to inform you that your message could not be delivered to
one or more recipients. It's attached below.



For further assistance, please send mail to postmaster.



If you do so, please include this problem report. You can delete your own
text from the attached returned message.



                   The mail system



<[email protected]>: host mail2.altencos.com[72.18.132.43] said: 503 This
mail

    server requires authentication when attempting to send to a non-local

    e-mail address. Please check your mail client settings or contact your

    administrator to verify that the domain or address is defined for this

    server. (in reply to RCPT TO command)

-- 
--[MDaemon-L]------------------------------------------------
Milis ini untuk Diskusi antar pengguna MDaemon Mail Server.

Netiket: http://www.netmeister.org/news/learn2quote
Arsip: http://mdaemon-l.dutaint.com
Dokumentasi : http://mdaemon.dutaint.co.id
Henti Langgan: Kirim mail ke MDaemon-L-unsubscribe [at] dutaint.com
Berlangganan: kirim mail ke MDaemon-L-subscribe [at] dutaint.com
Versi terakhir MD 14.0.3, SP 4.1.5, BES 2.0.2, OC 2.3.3, SG 3.0.1

Kirim email ke