My account sending hidden SPAM e-mails, i receive only mail delivery failure for e-mails that i didn't send

Question

My account sending SPAM e-mails but i can't find it in sent folder, i receive only undelivered message response for messages which i didn't send and problem is not on provider server i checked it out.
Examples of server response:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
[email protected]
SMTP error from remote mail server after end of data:
host mx1.optonline.net [167.206.4.77]: 554 5.7.1 Spam detected by Cloudmark content scanner. Message rejected.
------ This is a copy of the message, including all the headers. ------
Return-path: <[email protected]>
Received: from [181.64.16.205] (helo=kiwqdljpf)
by smtp2.neobee.net with esmtpa (Exim 4.74)
(envelope-from <[email protected]>)
id 1WPiCY-0004IY-2G
for [email protected]; Tue, 18 Mar 2014 01:48:20 +0100
Subject: FirmViagra
Date: Mon, 17 Mar 2014 18:41:36 -0700
To: <[email protected]>
From: "Sleb Icap" <[email protected]>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-7
X-Spam-Score: 1.2 (+)
X-Scan-Signature: 05e778587fdac215ad5fe7047e8f78ed
http://holzstark.at/opportune.htm?la
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
[email protected]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
host mx.coxmail.com [68.99.120.4]: 550 5.1.1 <[email protected]> recipient rejected
------ This is a copy of the message, including all the headers. ------
Return-path: <[email protected]>
Received: from [181.64.16.205] (helo=kiwqdljpf)
by smtp2.neobee.net with esmtpa (Exim 4.74)
(envelope-from <[email protected]>)
id 1WPiCk-0004IY-B6
for [email protected]; Tue, 18 Mar 2014 01:48:32 +0100
Subject: SweetDrugs
Date: Mon, 17 Mar 2014 18:41:48 -0700
To: <[email protected]>
From: [email protected]
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
X-Spam-Score: 2.3 (++)
X-Scan-Signature: 05e778587fdac215ad5fe7047e8f78ed
http://selapak-cambodia.com/chic.html?zogyzeno
My configuration of Thunderbird is:
Application Basics
Name Thunderbird
Version 24.3.0
User Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0
Profile Folder
Show Folder
(Local drive)
Application Build ID 20140131124303
Enabled Plugins about:plugins
Build Configuration about:buildconfig
Crash Reports about:crashes
Memory Use about:memory
Mail and News Accounts
ID Incoming server Outgoing servers
Name Connection security Authentication method Name Connection security Authentication method Default?
account1 (pop3) pop3.neobee.net:110 plain passwordCleartext smtp.neobee.net:25 alwaysSTARTTLS passwordCleartext true
account2 (none) Local Folders plain passwordCleartext
account3 (pop3) pop.mail.yahoo.com:995 SSL passwordCleartext smtp.mail.yahoo.com:465 SSL passwordCleartext true
account4 (pop3) pop.mail.yahoo.com:995 SSL passwordCleartext smtp.mail.yahoo.com:465 SSL passwordCleartext true
account5 (pop3) pop.mail.yahoo.com:995 SSL passwordCleartext smtp.mail.yahoo.com:465 SSL passwordCleartext true
Extensions
Name Version Enabled ID
Test Pilot for Thunderbird 1.3.9 false [email protected]
Important Modified Preferences
Name Value
browser.cache.disk.capacity 358400
browser.cache.disk.smart_size.first_run false
browser.cache.disk.smart_size.use_old_max false
browser.cache.disk.smart_size_cached_value 358400
dom.max_chrome_script_run_time 0
extensions.lastAppVersion 24.3.0
font.internaluseonly.changed true
font.name.monospace.el Consolas
font.name.monospace.tr Consolas
font.name.monospace.x-baltic Consolas
font.name.monospace.x-central-euro Consolas
font.name.monospace.x-cyrillic Consolas
font.name.monospace.x-unicode Consolas
font.name.monospace.x-western Consolas
font.name.sans-serif.el Calibri
font.name.sans-serif.tr Calibri
font.name.sans-serif.x-baltic Calibri
font.name.sans-serif.x-central-euro Calibri
font.name.sans-serif.x-cyrillic Calibri
font.name.sans-serif.x-unicode Calibri
font.name.sans-serif.x-western Calibri
font.name.serif.el Cambria
font.name.serif.tr Cambria
font.name.serif.x-baltic Cambria
font.name.serif.x-central-euro Cambria
font.name.serif.x-cyrillic Cambria
font.name.serif.x-unicode Cambria
font.name.serif.x-western Cambria
font.size.fixed.el 14
font.size.fixed.tr 14
font.size.fixed.x-baltic 14
font.size.fixed.x-central-euro 14
font.size.fixed.x-cyrillic 14
font.size.fixed.x-unicode 14
font.size.fixed.x-western 14
font.size.variable.el 17
font.size.variable.tr 17
font.size.variable.x-baltic 17
font.size.variable.x-central-euro 17
font.size.variable.x-cyrillic 17
font.size.variable.x-unicode 17
font.size.variable.x-western 17
mail.openMessageBehavior.version 1
mail.winsearch.firstRunDone true
mailnews.database.global.datastore.id d3f7cbbc-ff7c-49f8-8265-081ff16f23e
network.cookie.prefsMigrated true
places.database.lastMaintenance 1394703331
places.history.expiration.transient_current_max_pages 104858
plugin.importedState true
plugin.state.flash 0
plugin.state.java 0
plugin.state.npauthz 0
plugin.state.npbrowserplugin 0
plugin.state.npctrl 0
plugin.state.npdeployjava 0
plugin.state.npgeplugin 0
plugin.state.npgoogleupdate 0
plugin.state.npnokiasuiteenabler 0
plugin.state.nppdf 0
plugin.state.npspwrap 0
plugin.state.npvlc 0
security.default_personal_cert Select Automatically
security.disable_button.openCertManager false
security.disable_button.openDeviceManager false
security.OCSP.require true
Graphics
Adapter Description Intel(R) HD Graphics Family
Vendor ID 0x8086
Device ID 0x0116
Adapter RAM Unknown
Adapter Drivers igdumd64 igd10umd64 igd10umd64 igdumdx32 igd10umd32 igd10umd32
Driver Version 8.15.10.2462
Driver Date 7-26-2011
Adapter Description (GPU #2) NVIDIA GeForce GT 630M
Vendor ID (GPU #2) 0x10de
Device ID (GPU #2) 0x0de9
Adapter RAM (GPU #2) 2048
Adapter Drivers (GPU #2) nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version (GPU #2) 9.18.13.3165
Driver Date (GPU #2) 10-23-2013
Direct2D Enabled false
DirectWrite Enabled false (6.2.9200.16571)
ClearType Parameters ClearType parameters not found
WebGL Renderer false
GPU Accelerated Windows 0
AzureCanvasBackend skia
AzureFallbackCanvasBackend cairo
AzureContentBackend none
JavaScript
Incremental GC 1
Accessibility
Activated 0
Prevent Accessibility 0
Library Versions
Expected minimum version Version in use
NSPR 4.10.2 4.10.2
NSS 3.15.4 Basic ECC 3.15.4 Basic ECC
NSS Util 3.15.4 3.15.4
NSS SSL 3.15.4 Basic ECC 3.15.4 Basic ECC
NSS S/MIME 3.15.4 Basic ECC 3.15.4 Basic ECC
Please help me to solve this problem.

Answer 1

By the way, some non-delivery receipts (NDRs) are themselves spam messages with malicious attachments designed to infect your computer, so be cautious about opening any of those.