Configure Exchange E-Mail Server Reverse DNS and MX Records Correctly
RecoverySoft / May 2, 2018

If DNS is setup incorrectly, over time your mail server IP will be added to blacklists. Nowadays most E-Mail servers have some kind of spam protection service which in turn means that all your inbound mail will be blocked if you do happen to be listed on a spam blacklist. In this article I will describe how to correctly configure your MX and reverse DNS records for your mail server. This article is based on an Exchange 2003/2007 server but every other messaging server will follow the same principle. Assigning an IP address Starting from the bottom up the first thing you need to do is assign a static external IP address to the internal private address of your mail server. You will need to apply these rules on your firewall to port forward SMTP (port 25) and NAT an external IP address to the internal address of the server. Something that a lot of administrators forget to do or check is to set the outgoing NAT rule to use the same external IP address created for the inbound rule to the mail server. If this isn’t set, Reverse DNS will not match and in turn your mail server will…

Enhanced Oil Recovery, Secondary, and Tertiary Recovery
RecoverySoft / April 16, 2018

Did you know that much of the oil in the ground is still present after primary recovery? In the kings english, that means there is still a lot of oil left in a well even after 10 years of pumping. The reason oil production slows is that the natural drive that once pushed oil aggressively towards the wellbore has subsided. Normally, the natural drive is either water or gas in the formation. In this article, we look to explain some of the common enhanced or secondary / tertiary methods of oil recovery. With oil hitting new highs every day, it is clear the cost benefit of utilizing technology to get at extra production makes sense. When oil was in the $ 10-20 range, the incremental cost of some enhanced oil recovery methods did not make economic sense. One of the most common secondary recovery methods is a waterflood. Essentially, a waterflood is a reintroduction of water into the formation to create a drive to push more oil towards the wellbore. To increase the efficiency of a waterflood, new methods utilize Alkaline-Surfactant-Polymer floods and some explorers are introducing microbes into the wellbore to increase the sweep efficiency of the flood, both…