This content is no longer maintained. Please visit our new website.

ACCC Home Page Academic Computing and Communications Center  
Accounts / Passwords Email Labs / Classrooms Telecom Network Security Software Computing and Network Services Education / Teaching Getting Help
The A3C Connection, Oct/Nov/Dec 2000 The A3C Connection
Oct/Nov/Dec Contents Slamming Spamming Fig 2: Legit Email Headers Fig 3: Spam Email Headers Reading Email Headers
nslookup More Info on Headers and Spam Designing Accessible Web Pages Web Accessiblity Contest About the A3C Connection

More Info on Reading Email Headers and Spam

Greg Byshenk's Help I've been Spammed! What do I do?
This article explains how to complain about spam messages and gives good hints about how to avoid it. If you're thinking about using a faked email address to minimize the spam you receive (although many people, including me, find this terribly annoying), read this article before you do it. It explains how to do it right. (Doing it wrong could cause a lot of wasted effort for innocent Internet servers.)
Spamhaus Register of Known Spam Operations, ROKSO,
"The Register of Known Spam Operations (ROKSO) database collates information and evidence on known professional spam operations that have been terminated by a minimum of 3 Internet Service Providers for spam offenses."
Reading Email Headers,
This article could use a table of contents, but it does live up to its subtitle: "All About Email Headers" .'s How to Read Email Headers,
Reading email headers helps you fight spam, which is the purpose of these pages. It includes an explanation of the time system used in email headers and goes through the steps you'll use to complain about a spam message.'s Whois lookup page,
This is a good way to query the Whois database; the data returned includes the name and contact info for a technical contact person for the machine.
Spam Cop: and Network Abuse Clearinghouse:
The major organizations that provide automated spam compliant services. Or you can forward your spam email to the US Federal Trade Commission's spam collection address:   (
MAPS Mail Abuse Prevention System:
MAPS is a not-for-profit organization "whose mission is to defend the Internet's e-mail system from abuse by spammers." They keep lists of machines that participate in spam; ISPs may subscribe to their lists for automatic filtering of mail from those machines. Many people think MAPS goes a bit too far -- in their most strict program, all email is blocked from MAPS restricted sites, both incoming and outgoing.
InfoBear's nslookup Web site,
Use nslookup to find the IP address of a given Internet hostname or the hostname for a given IP address.
The official Internet "Request for Comments" that described email headers, RFC 822.
Like most other RFCs, this RFC is very technical, but these sites break it down into small chunks so that you don't get overwhelmed: from the W3C and from Freesoft.

The A3C Connection, Oct/Nov/Dec 2000 Previous:  nslookup Next:  Designing Accessible Web Pages

UIC Home Page Search UIC Pages Contact UIC