What is Sender Policy Framework (SPF)?

What is Sender Policy Framework (SPF)? The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery.[1] SPF was created in 2003 to help close loopholes in email delivery systems that allow spammers to “spoof” or steal your email address to send hundreds, thousands or even millions of…

The end of JPEGs?

photo credit: Express Monorail Yesterday Google released a new open image format, WebP. The goal of the WebP format is to create a new image format specifically for the internet that will significantly reduce image size. From Google’s initial trials, WebP reduced the file size by 39% in a test of 1,000,000 images retrieved from…

What is a DOS attack and why should I care?

Twitter seems to be back on it’s feet after dealing with the wrath of the DOS (denial of service) attack that hit it last Thursday, causing several hours of outages and even more hours of slow service. The DOS attack was apparently aimed at a specific blogger and negatively impacted not only Twitter, but that…