Отправил письмо, моментально пришло другое с таким текстом (внутри). Что это значит?

A message from <jekich2010@mail.ru> to:
-> optshoes@mti.ua

was considered unsolicited bulk e-mail (UBE).

Our internal reference code for your message is 22514-09/i3Luxl8Uhu5d

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: [94.100.178.95] f103.mail.ru
According to a 'Received:' trace, the message originated at:
[178.150.151.231], [178.150.151.231]

Return-Path: <jekich2010@mail.ru>
Message-ID: <e1phn8p-00009z-00.jekich2010-mail-ru@f103.mail.ru>

Delivery of the email was stopped!

Reporting-MTA: dns; edo.mti.ua
Received-From-MTA: smtp; edo.mti.ua ([127.0.0.1])
Arrival-Date: Tue, 25 Jan 2011 19:57:20 +0200 (EET)

Original-Recipient: rfc822;optshoes@mti.ua
Final-Recipient: rfc822;optshoes@mti.ua
Action: failed
Status: 5.7.0
Diagnostic-Code: smtp; 554 5.7.0 Reject, id=22514-09 - SPAM
Last-Attempt-Date: Tue, 25 Jan 2011 19:57:20 +0200 (EET)
Final-Log-ID: 22514-09/i3Luxl8Uhu5d

Return-Path: <jekich2010@mail.ru>
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for optshoes@mti.ua; Tue, 25 Jan 2011 20:57:19 +0300
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Tue, 25 Jan 2011 20:57:19 +0300
From: =?koi8-r?Q?=F6=C5=CB=C9=DE_.?= <jekich2010@mail.ru>
To: optshoes@mti.ua
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Date: Tue, 25 Jan 2011 20:57:19 +0300
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