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Posts Tagged ‘mail.app’

256-bit AES Encryption for SSL and TLS: Maximal Security

Wednesday, February 4th, 2015

SSL and TLS are the workhorses that provide the majority of security in the transmission of data over the Internet today. However, most people do not know that the degree of security and privacy inherent in a “secure” connection of this sort can vary from “almost none” to “really really good … good enough for US government TOP SECRET data”.  The piece which varies and thus provides the variable level of security is the “cipher” or “encryption technique”.  There are a large number of different ciphers — some are very fast and very insecure.  Some are slower and very secure.  Some weak ones (export-grade ciphers) are around from the days when the USA did not permit the export of decent security to other countries.

AES, the Advanced Encryption Standard, is a relatively new encryption technique/cipher that is the successor of DES.  AES was standardized in 2001 after a 5 year review, and is currently one of the most popular algorithms used in symmetric key cryptography (which, for example, is used for the actual data transmission in SSL and TLS).  It is also the “gold standard” encryption technique; many security-conscious organizations actually require that their employees use AES-256 (256-bit AES) for all communications.

This article discusses AES, its role in SSL, which web browsers and email programs support it, how you can make sure that you only use 256-bit AES encryption of all secure communications, and more.

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How to Install S/MIME (and PGP) Encryption Certificates into Major Email Clients

Wednesday, May 27th, 2009

We at LuxSci are always being asked questions about various email programs and their usage.  With HIPAA compliance becoming more and more important, we get a lot of inquiries regarding secure email. One of the most frequently asked questions is how to install S/MIME security certificates in various email programs that our servers support. Sometimes finding instructions on installing security certificates in various email clients is difficult, even with the help of search engines. To make your search easier, we have complied instructions for several of the the major email clients:

  • S/MIME for Outlook 2003
  • S/MIME for Outlook 2007
  • S/MIME for Mail.app
  • S/MIME for Entourage
  • S/MIME for Thunderbird
  • PGP for Thunderbird via the Enigmail Add-on.

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Viewing the Message Source / Full Headers of an Email

Wednesday, February 4th, 2009

When diagnosing issues with email delivery and analyzing the properties of an email message, it is almost always the case that one needs to obtain either the “full headers” of the message or the “source” of the message.

The “message source” is the complete raw content that represents the message.  This includes all of the “metadata” about the message (who its from and to, the subject, etc.) as well the body content and all of the attachments. The full message source really contains two distinct parts — the full headers and the body.  The full headers are at the beginning of the message source and continue until a blank line is reached;  one or more blank lines separate the headers from the body.

In this article, we are not going to discuss what is in the headers or body, or how that information is formatted.  Instead, we will show you how to retrieve this information when using different kinds of email programs and web-based systems.  With these instructions, you should be able to get the “full headers” from any email message located in most email systems.  This information can be helpful to your technical support representatives when analyzing message behavior.

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iPhone: The Ultimate Mobile Email Client?

Wednesday, January 21st, 2009

The iPhone from Apple is an amazing Smart Phone, if not a mini personal computer in itself.  We at LuxSci have been using iPhones since they were first available in 2007 and we have optimized our Xpress WebMail portal with a mobile-centric interface inspired by the iPhone and come out with MobileSync push email and contact/calendar sync services that work beautifully with iPhone and other mobile devices.  Many of our clients use an iPhone or other Internet-enabled mobile device with our email services. The time seems right to share some of our knowledge and experience with iPhones.

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Head to Head Battle of the Email Clients

Friday, December 5th, 2008

As an email hosting service, we at LuxSci are frequently asked about email clients. We would like to share with you of our expertise and opinions about the most popular email clients. We’ve created a quick guide to email programs that includes an explanation of the client, its major features, and what makes it stand out.

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