alt.spam FAQ or "Figuring Out Fake E-Mail & Posts"
- Describes how to find out where a fake post or e-mail originated from.
- http://fuzzo.com/spam_faq.htm

eMailTrackerPro
- Helps identify the true source of e-mails, to help identify and report spammers. Analyzes e-mail headers and provides the IP Address of the machine that sent the e-mail.
- http://www.visualware.com/personal/products/emailtrackerpro/index.html

Mail Parsing & Tracking
- Displays visual email routing and the time taken to go from server to server, allowing each mail server hop to then be queried against common spam blacklists.
- http://www.levinecentral.com/mail_parse/default.aspx

Figuring out fake E-Mail & Posts
- A comprehensive guide on how to track down the source of the spam.
- http://home.digital.net/~gandalf/spamfaq.html

Reading Email Headers
- An in-depth analysis of how e-mail is sent and how to read its headers.
- http://www.stopspam.org/email/headers.html

Exterminating Spammers Step-By-Step
- Describes procedures and basic tools that recipients can use to report senders of unsolicited commercial email.
- http://www.camblab.com/nugget/extermin.htm

Spam Identifier
- Tools for identifying the source of spam and reporting it.
- http://www.spamid.net/

What to do about Unwanted/Offensive Email
- Explains in detail how to track and complain about spam.
- http://www.oitc.com/Disney/WhatToDo.html

Spam Delenda Est
- Steps for tracking spammers and getting their accounts revoked.
- http://www.stentorian.com/antispam/index.html

SpamFilter: Report Spam Plugin
- SpamFilter quickly tracks spam source and easily helps send complaints.
- http://www.nehuenmultimedia.com.ar/html/spamfilter.html

Fighting Spam Article by OpioN
- Basic information on tracking source of spam.
- http://neworder.box.sk/newsread.php?newsid=3000

SpamX - Blocking, Tracking and Reporting
- Effective software to help block and report the sending of spam. Works with existing POP3 email account(s) and runs on Mac or Windows computers.
- http://www.spamx.com/

The SPAM-L FAQ - Tracking Spam
- Instructions for reading e-mail headers and complaining to the spammer's ISP.
- http://www.claws-and-paws.com/spam-l/

Adcomplain
- A Perl script to automate spam complaints.
- http://www.rdrop.com/users/billmc/adcomplain.html

Spam Tracking Page
- Comprehensive collection of tools to help track spam.
- http://www.rahul.net/falk/

The Spamhaus Project
- Tracks known Spam Support Services and lists the ISPs who keep organized spamming alive; includes news, block list and ROKSO, the Register Of Known Spam Operations.
- http://www.spamhaus.org/

net.demon
- Downloadable software to trace the sender of an e-mail and locate the spammer's real web site.
- http://www.netdemon.net/

Stop Spam FAQ
- How to find a spammer and how to respond to spam.
- http://www.mall-net.com/spamfaq.html

How to Interpret Email Headers
- Instructions for interpreting e-mail headers.
- http://help.mindspring.com/docs/006/emailheaders/

SamSpade.org
- Software tools for tracking spam.
- http://www.samspade.org/

EmailAbuse.org
- Tips to help identify and report email abuse.
- http://www.emailabuse.org/