Updated word and phrase list for Anti-Spam
Product: IMail and Ipswitch Collaboration SuiteVersion: 8.x and 2006.x
We have published an updated antispam table for Statistical Filtering and a new phrase list for Phrase Filtering. (There were several thousand URLs added to the URL domain black list -- there are now over 12,000 domains listed).
You can download the update from:
ftp://ftp1.ipswitch.com/Ipswitch/Product_support/IMail/antispam.zip
Contents of Antispam.zip
========================
antispam-table.txt Updated seed file for statistical filters
url-domain-bl.txt Updated URL domain black list filter list
phrase-list.txt Updated phrase filter list
Readme.txt This file
Changes.txt Changes in the phrase and URL domain black list for this release
Installing updates
==================
To install the anti-spam updates contained in the antispam.zip file, follow
these steps. It will be necessary to restart IMail's Queue Manager service after you
extract the new files.
1.) Back up the existing antispam-table.txt, phrase-list.txt and URL-domain-bl.txt files for the primary domain. Extract the desired file or files from the antispam.zip file. We suggest you extract these files to a temporary location to avoid accidentally overwriting files.
2.) Copy the new antispam-table.txt file to the primary domain's Top Directory, overwriting the file which already exists. To determine your primary domain, select the localhost folder in the left panel of IMail Administrator and check the 'Host Name' entry on the General tab. This entry should match a hostname from the list in the left panel. Select that domain from the list and on the General tab, locate the 'Top Directory' entry. Extract the files to this location.
Note -- If you plan to maintain different Statistical Filtering data for separate domains, you must copy the antispam-table.txt file to each domain's Top Directory and make changes to the file in each of those locations.
3.) Copy the phrase-list.txt file to the Top Directory for any domain that has an Antispam folder in IMail Administrator, overwriting the existing file. Then, in IMail Administrator, select the Content Filtering tab for each of the domains. Examine the list of new phrases and remove any that occur in legitimate e-mail in your environment. This will inhibit false positives.
4.) Starting in version 8.01, there is also a URL-domain-bl.txt file. This file contains a list of common spam domains and should be copied to the same directories as the antispam-table.txt. It is highly recommended that you examine this list and remove any domains which are not objectionable to your users.
Merging Updates
===============
To merge the antispam-table.txt updates contained in the antispam.zip file
with the current antispam-table.txt follow these steps. (You can find
antispamseeder.exe and cleanlist.exe in your IMail directory.)
1.) Back up the existing antispam-table.txt, phrase-list.txt and URL-domain-bl.txt files for the primary domain. Extract the desired file or files from the antispam.zip file. We suggest you extract these files to a temporary location to avoid accidentally overwriting files.
2.) To merge the antispam-table.txt file to a domain's antispam-table.txt file, use the antispamseeder utility with the following commands:
antispamseeder -t<new antispam-table.txt> -h<host>
The new antispam-table.txt is the antispam-table.txt file from the updated files.
3.) To merge the url-domain-bl.txt file, run the cleanlist.exe with the following command line:
cleanlist.exe file1 file2
Where:
file1 = The path/file name to the
domain's url-domain-bl.txt file. This file will be overwritten with the new
url-domain-bl.txt.
file2 = The path/file name of the
updated url-domain-bl.txt file.
This will merge the two files into file1 and remove any duplicates.
Version 8.2x accepts two additional parameters: /q and /a parameter:
If the /q parameter is included when running cleanlist.exe, cleanlist.exe will ask
for the number of labels you wish to write to
file1 for any domain found in file2 that ends in a two character TLD (.uk, .us, .ws).
Example:
cleanlist.exe file1 file2 /q
-----
If the /a parameter is included, while parsing file2 for URLs to add to file1, cleanlist.exe will leave 3 labels for domains that end in two characters (.uk, .ru).
Example:
cleanlist.exe file1 file2 /a
mail.domain.co.uk becomes domain.co.uk
url.www.spam.server.us becomes spam.server.us
domain.co.uk becomes domain.co.uk
If the /a parameter is included, while parsing file2 for URLs to add to file1, cleanlist.exe will leave 2 labels for domains that end in two characters (.com, .biz, .net).
Example:
cleanlist.exe file1 file2 /a
mail.domain.company.com becomes company.com
url.www.spam.server.biz becomes server.biz
domain.org becomes domain.org
-----
If the /a or /q parameter is not included when merging two URL lists, cleanlist.exe will add the exact URL from file2 into file1.
4.) To merge the phrase-list.txt file, run CleanList.exe with the following command line:
cleanlist.exe /p file1 file2
This will merge file2 into file1, remove any duplicates and sort the list. If file1 and file2 do not exist in the IMail program directory, you will need to include the full path to the files.
Example:
cleanlist.exe /p phrase-list.txt new_phrase-list.txt
cleanlist.exe /p C:\IMail\maildomain_com\phrase-list.txt C:\Temp\IMail\Antispam\phrase-list.txt.
Document #: IM-20030513-DM01Revision Date: 03/10/08