" This four-step wizard will guide you through the process of creating a new SPF record for your DNS domain. You should add this DNS record to your domain's DNS configuration. Note that you may need to manually edit the SPF record created by this wizard if you want to use some of the more advance features of the SPF format. For complete details please refer to the SPF record specification at http://www.microsoft.com/senderid. "
"These tools are meant to help you deploy SPF records for your domain. They use an actual RFC 4408 compliant library (pyspf) for tests and will dynamically test for processing limit errors (no other testers I'm aware of do this). This site uses a caching DNS resolver, so for tests that use live DNS, results will be cached for the Time To Live of the DNS record. For most basic uses, these tests should be reasonably self explanatory."
"The SPF Surveyor is an SPF diagnostic tool that presents a graphical view of SPF records. The graphical view allows people to quickly identify which servers are authorized to send on behalf of a domain. (Note that this diagnostic tool focuses on domain-level authentication and largely ignores the portions of SPF that deal with the local parts of email addresses.)"
Chromixium combines the elegant simplicity of the Chromebook with the flexibility and stability of Ubuntu’s Long Term Support release. Chromixium puts the web front and center of the user experience. Web and Chrome apps work straight out of the browser to connect you to all your personal, work and education networks. Sign into Chromium to sync all your apps and bookmarks. When you are offline or when you need more power, you can install any number of applications for work or play, including LibreOffice, Skype, Steam and a whole lot more. Security updates are installed seamlessly and effortlessly in the background and will be supplied until 2019. You can install Chromixium in place of any existing operating system, or alongside Windows or Linux.
"Lubuntu is a fast and lightweight operating system. The core of the system is based on Linux and Ubuntu. Lubuntu uses the minimal desktop LXDE, and a selection of light applications. We focus on speed and energy-efficiency. Because of this, Lubuntu has very low hardware requirements. Lubuntu was founded by Mario Behling and is currently mainly developed by Julien Lavergne. Please join us and contribute to an exciting International Free and Open Source Software project. Install Lubuntu on your computer and start getting involved."