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Tag Archives: mail

July, 2010

  • 16 July

    How to Fix an Open Relay in Postfix


    As I have been reiterating all week, an open relay is a bad idea. If your mail server is left open, anyone can use your SMTP service to send mail, and spammers will use it. This can result in your server being blacklisted and extraneous use of system resources that …

December, 2009

  • 24 December

    The /var directory in Linux

    In previous posts, we covered the Linux file and directory structure. One very important directory in Linux is /var. This directory general contains the following subdirectories: 1. backups – primarily used by APT, this directory contains backups of package update states. 2. cache – certain applications use this directory to …

October, 2009

  • 21 October

    ICANN considering .post domain

    With so many people choosing email over traditional snail mail these days, it seems as though post offices are feeling a bit left out in the Internet age. The U.N.’s Universal Postal Union hopes to change that with the creation of a .post domain. The gTLD would be available to …

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