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PLEASE NOTE, THIS IS VERY OLD ARCHIVE
INFORMATION AND MAY NOT FUNCTION ON NEW SERVERS
Blocking Spam - The access File
The access file is similar to The spammers
File, but offers more options and flexibility. For example, with the access
file you can:
- Reject e-mail (e.g. Spam) from specific users, domains, IP addresses, and
networks.
- Specify the text (or use sendmail's default) of messages to return
to senders of rejected e-mail.
- Accept e-mail from specific users within a domain, while rejecting e-mail
from all other senders in the domain.
- Reject e-mail sent to specific local users.
There are also a number of other features of the access file, which
are documented in the ~/usr/local/sendmail/cf/README file.
Installation
The access file functions can be installed by modifying your sendmail
configuration file (~/etc/sendmail.cf). You can do this by using the sendmail
M4 macros, which include ready-to-use configuration files with the full
anti-spam support. Connect to your server via Telnet or SSH and do the
following.
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Install the sendmail Configuration
Utilities.
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Copy your current ~/etc/sendmail.cf file to a backup location by
running the following command:
% cp ~/etc/sendmail.cf ~/etc/sendmail.cf.save
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Install the new anti-spam sendmail configuration file that is
approprate for your server's O/S.
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NOTE: The anti-spam rules require an ACL account with mail-abuse.org
in order to function. To learn more about getting an ACL account, go
to MAPS Fee
Structure page.
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Create a file named local-host-names, if it doesn't exist already,
in your ~/etc directory on your server. In this file, list all the
domains on the server that are allowed to recieve e-mail locally. The list
should be one domain per line. Previously, these domains were listed on the Cw
line of the sendmail configuration file.
Usage
Create or upload an ~/etc/access text file with the format described in
the documentation in the ~/usr/local/sendmail/cf/README file. Then, issue
the vnewaccess command:
% vnewaccess
PLEASE NOTE, THIS IS OLD ARCHIVE
INFORMATION AND MAY NOT FUNCTION ON NEW SERVERS
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