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Alternatively send a mail to it either glug-tech-request.at.linux.org.za, glug-chat-request.at.linux.org.za or glug-jobs-request.at.linux.org.za with the subject line 'subscribe', and thereafter you will receive a confirmation e-mail on how to go about finalizing subscription.
The Mailing List Archives can be found at: http://www.linux.org.za/Lists-Archives/