[Tulungan] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the Postfix program at host filter.hq-mx1.localhost.

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 Postfix program

<the_brain87 at pinv.ru>: host 217.74.33.130[217.74.33.130] said: 550 5.1.1 User
    unknown (in reply to RCPT TO command)
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From: =?koi8-r?B?58XOzsHEycog?= <tulungan at polarhome.com>
Subject: =?koi8-r?B?9snMyd3O2cUg09DP0tk=?=
Date: 23 Jul 2028 09:26:07 +0100
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