[Tulungan] Considered UNSOLICITED BULK EMAIL, apparently from you

[Content-filter at mail.ic-design.ru]

A message from <tulungan at polarhome.com> to:
-> vydolob.gennady at ic-design.ru

was considered unsolicited bulk e-mail (UBE).

Our internal reference code for your message is 65198-01-2/frHMeU7dzSzW

The message carried your return address, so it was either a genuine mail
from you, or a sender address was faked and your e-mail address abused
by third party, in which case we apologize for undesired notification.

We do try to minimize backscatter for more prominent cases of UBE and
for infected mail, but for less obvious cases of UBE some balance
between losing genuine mail and sending undesired backscatter is sought,
and there can be some collateral damage on both sides.

First upstream SMTP client IP address: [201.35.216.91]
  201-35-216-91.bnut3702.dsl.brasiltelecom.net.br
According to a 'Received:' trace, the message originated at: [201.35.216.91],
  201-35-216-91.bnut3702.dsl.brasiltelecom.net.br
  (201-35-216-91.bnut3702.dsl.brasiltelecom.net.br [201.35.216.91])

Return-Path: <tulungan at polarhome.com>
Message-ID: <000501c8e1b6$0569dd6f$8202c2a6 at ulxbykxy>
Subject: =?koi8-r?B?4snMxdTZIM7BIOvPzsPF0tTZ?=

Delivery of the email was stopped!
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