Setting up openDKIM with Postfix (+ Troubleshooting)

Introduction DomainKeys Identified Mail, abbreviated as DKIM. It is a protocol which ensures that, the emails received are from right and authentic senders, and are not forged. DKIM uses public key cryptography [wiki link]. Most of the times when you deal with a mail server, emails are unfortunately going into spam, because your DNS does … Continue reading Setting up openDKIM with Postfix (+ Troubleshooting)

Ubuntu 12.10 – Maximizing Battery Backup

Here is a quick tutorial, to maximize battery backup of your laptop. This is based on ubuntu 12.10, which has many improved feature which you need to tweak to improve the backup. Tools used are : 1. "Disks" 3.6.1 2. Jupiter Applet 3. PowerTop Disks, This program comes default with ubuntu 12.10, it has many … Continue reading Ubuntu 12.10 – Maximizing Battery Backup