IT Baseline Protection Manual - The Information Warfare Site

Safeguard Catalogue - Communications Remarks
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A high volume of e-mail traffic can also result from subscriptions to a
correspondingly large number of mailing lists. In general, regular checks
should be made as to whether the subjects discussed in a mailing list are still
worth reading. If not, subscription should be cancelled. Users must be
instructed to make regular (i.e. daily, if possible) checks of mail influx related
to subscriptions to mailing lists. In large organisations, mailing lists of
professional interest should only be subscribed to by one staff member (e.g.
the mail administrator) and then made available centrally to all other
employees.
Additional controls:
- Have all users been informed about the threats posed by spam?
- Who subscribes to which mailing lists?
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IT-Baseline Protection Manual: Oktober 2000