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• Error in Linux Filesystemen Endangers Postfix

  Wietse Venema, the developer of Postfix, points in an advisory to a security problem in connection with the Linux and Solaris filesystems. As more recent versions of these operating systems no longer comply with the POSIX standard for links, local attackers may be able to attach files to other users' Postfix mailboxes.

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• Charly's Column

  The Postfix Policyd plugin fights spam using techniques such as greylisting, source detection, volume measurements, blacklisting, and HELO rotation detection.

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• Email Encryption with Zeyple

  IT specialists often rely on automatic notification for status messages and logfiles by email. A Python script named Zeyple uses GPG to protect potentially sensitive messages against unauthorized viewing.

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• Milter Manager 1.0.0 Combines Anti-Spam Filters

  Milter Manager, a program for mail filter interfaces to mail servers, is now in its first stable version 1.0.0. It allows combining multiple mail filters.

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• Optimizing Servers

  Your homepage was just linked by Slashdot, a new email campaign goes out tonight, and you need the database to deliver survey results. We’ll show you how to help your servers survive the strain.

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