Vex.Net

Integrated Online Solutions

VoIP | Design | Apps | Marketing | Hosting | Development

Vex.Net

VoIP | Design | Apps | Marketing | Hosting | Development

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2005.03.18 SPF and Mailman SpamAssasin

In the eternal struggle against spam, we have enabled SPF rules on our incoming mail server. "SPF":http://spf.pobox.com/ is a method of using DNS to identify whether email from an incoming IP realy is from the domain it claims to be from. This is far from foolproof, and not that many ISPs use it on their outgoing mail. However, some of the big ISPs do use it (such as AOL and the likes) which are huge victims of forged email. So now, for example, any email claiming to be from aol.com which does not connect to our server from one of the IPs that AOL itself specifies in its SPF settings will be rejected. We are already seeing a massive reduction in spam our mail server has to process due to this (thousands and thousands of messages per day). If mail is rejected due to the SPF policy, the sender will receive a bounce message which contains a URL pointing them to detailed information regarding why their mail was rejected, and what can be done about it. In other news, we now have enabled SpamAssassin on all of our hosted Mailman based mailing lists. The treshhold for rejection is set to 8 (somewhat high); messages scoring 5 or greater will be "held". Mail posted from members of the list get 3 point bonus, to help prevent false positives.
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I have been a customer of Vybe Networks since the early 90's and have had my professional website designed, housed and managed by them since the early 2000's. Vybe Networks also houses and manages my LMS system which is critical to my business. I recently added an automatic backup of all my critical personal and business information on my computer to the Vybe Cloud system. It is now time for me to offer my thanks to Vybe and all the personnel for making all my digital needs so seamless and easy.

I am a professional instructor in the financial industries. I am neither a computer expert nor do I have any knowledge of programming.

Based on Vybe Networks ability to create a site that is dynamic and, at the same time simple and easy for me to update the information on the site to keep it current. I can update this information myself, using the tools provided by Vybe. This allows me to be current without any wait time for a programmer to make changes.

When I have ever needed to access one on one help from Vybe they are always responsive and very efficient. Even when there have been unavoidable interruptions in any of my services with Vybe, they find solutions and get things back on track faster than any other services I must deal with.

Thanks to all the people at Vybe Networks for making my digital world simple and stable over these many years. I anticipate many more years of service with Vybe Networks.

Monica C.