Earlier today we had a minor issue on a development server that generated around 175,000 emails dumped into a Postfix queue in a short amount of time. I needed to first analyze the emails and second clear the Postfix queue. Below is information on how to learn more about the emails in the Postfix queue, what domain they are being sent to, and last but not least delete those emails from the queue if they are not needed.
Backtrack 4: Information Gathering: Search Engine: Goorecon – Find emails and subdomains using Google
During the Information Gathering section of a pentest, we are interested in finding out the various sub-domains of our target domain. In the past few tutorials we queried DNS servers using zone transfer requests or trying to retrieve entries using a dictionary & brute-forcing attacks. Another technique to figure out sub-domains is to query google and check if it has found any sub-domains during it’s web mining exercise on the target. Goorecon can do this. Goorecon was written by Carlos (Darkoperator) Perez.
Recently I have been sending a lot of emails to a colleague in Portugal whose name ends é. While I was told it is not so rude to simply not include the accent above the E I actually prefer to include the accent to display respect since he actually includes the accent over the E in his signature. Since I am using Outlook 2007 the below Outlook keyboard shortcut will provide the easiest method for you to insert an E with an accent over the top in emails that you compose. After information related specifically to the accent over the E I also discuss inserting other non English symbols into email messages composed with Outlook.