Virtual Users And Domains With Postfix, Courier And MySQL (+SMTP-AUTH, SpamA, ClamAV) i am a newbie. i followed the guide to install my first email server. Thanks For the great guide. I have some questions 1.Do Amavisd, SpamAssassin and ClamAV only scan for incoming emails ???? Do Amavisd, SpamAssassin and ClamAV scan for outcoming emails ???? 2. Is the guide suitable for installing Postfix 2.2 + ???? 3. when i typed " apt-get upgrade ", my system told me that postfix postfix-mysql postfix-tls are available for upgrade. server1:~# apt-get upgrade Reading Package Lists... Done Building Dependency Tree... Done The following packages will be upgraded: postfix postfix-mysql postfix-tls 3 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0B/988kB of archives. After unpacking 4096B disk space will be freed. Do you want to continue? [Y/n] However, the upgraded packages are same version that i installed when i followed the guide to do. server1:~# apt-cache show postfix-mysql | grep Version: Version: 2.1.5-9 Version: 2.1.5-9 server1:~# apt-cache show postfix | grep Version: Version: 2.1.5-9 Version: 2.1.5-9 server1:~# apt-cache show postfix-tls | grep Version: Version: 2.1.5-9 Version: 2.1.5-9 Should i press "Y" to upgrade ??? Will this upgrade affect the quota patch ? thank you so much!!!!!