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Cleartext Systems
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Interesting Reading

Resources

These demonstrate technical skills in the area of work. Specialising in the security aspects of information technology solutions and protocols often misunderstood by general IT support staff such as DNS, SPF, DKIM, DMARC, SSL/TLS, authentication and cryptographic technologies.


The history of email is a good read.

The History of Email, an Abbreviated timeline

White Papers

Documents by David on various topics

The State of Email (2015) (pdf)Download
Comms & Content Best Practices (2011) (pdf)Download
How to Stay Virus Free (2002) (pdf)Download

Magazine Articles

These of historical interest written by David.

Wave goodbye to messaging (2009). (pdf)Download
Developing a lingua franca for instant messaging (2008). (pdf)Download

Downloads

Documents that are linked in content on the web site.

DoD general Export Licence (jpg)Download
Cleartext ISO9001 Certificate (jpg)Download
ICO Registration Certificate (pdf)Download
Cyber Essentials Certificate (pdf)Download
20230126 - Proofpoint Essentials New Packages Launch Webinar - January 2023 - Slides V2 (pdf)Download

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