Apple's iPhone has an excellent email client that is an important part of the platform. The iPhone's sophisticated use of IMAP (in contrast to other widely available IMAP clients) is one reason that the email client works so well.
A new whitepaper on the Isode site looks at how iPhone uses IMAP to meet mobile messaging requirements, and looks at other IMAP capabilities that could be used to support mobile messaging.
This is the second in a series of messages describing new features in Isode R14.4, scheduled to ship in April 2009. You can see all of the messages on this blog relating to R14.4 by clicking on this link.
The issue of ensuring that sensitive information is not sent to inappropriate individuals or domains is a critical one to many of Isode's customers. A new whitepaper on the Isode website looks at Using Security Labels to Control Message Flow in XMPP Services.
As promised in my last blog post we have just updated the graph on our whitepaper:
"Measuring the False Negative Rate for Isode’s M-Switch Anti-Spam."
The graph now contains the data from the 1st May 2008 - 31st July 2008. As you can see our False Negative rate continues to be consistently low as a result of the continuous improvements to our data set.
As mentioned in previous posts (Blog post May 9th 08 and Blog post May 14th 08) we have been paying particular attention to the False negative rate of the copy of M-Switch Anti-Spam running here at Isode's offices. We wrote a whitepaper on our findings:
“Measuring the False Negative Rate for Isode’s M-Switch Anti-Spam.”
The whitepaper included graphs showing the daily quantities of Spam we received and the daily False Negative rate going back over 4 months (up to 30th April). We always intended to keep these graphs up to date so that they would continue to track M-Switch's performance and today we've updated them to include May's figures.
We will continue to update these graphs, at the end of each month, so that they always show current data.
A key feature of any anti-spam solution is how effective it is at removing spam. A perfect anti-spam system would have a zero false positive rate and a zero false negative rate. In practice, this is not usually achieved, and systems will invariably trade off the two measurements.
A new whitepaper on the Isode website describes how false negatives can be measured and looks at false negative rates from the beginning of this year for Isode's M-Switch Anti-Spam.
"Measuring the False Negative rate for Isode's M-Switch Anti-Spam"
The graph below shows the false negative rate from January 2008.
Modern military communications are a key component of Network Centric Warfare. HF Radios are used extensively for military communications, and, although very slow, provide effective long distance communication in a wide range of situations.
A new whitepaper on the Isode website looks at how HF Radio fits with Network Centric Warfare, and looks at approaches for integrating HF Radios to maximize their effectiveness.
Instant Messaging (IM) and Presence applications are now in wide use. In a new free-to-access whitepaper on the Isode website we consider their application in environments where security is of paramount concern, such as Government and Military deployments.
In particular the paper looks at:
The paper shows how an XMPP based solution can address these areas and looks at standards that need to be put in place to meet the security requirements discussed in this paper.
The first version of Isode's XMPP server, M-Link, was released with Isode R14.2 last month.
"Instant Messaging and Presence for Secure Environments" can be found here.
The first International LDAP Conference, organised by the German Unix Users Group, takes place in Cologne on the 6th & 7th of September this year (more information here).
Isode's Kurt Zeilenga is giving the conference's introductory presentation, a report on current directory standardization activities, and we'll be posting a report on the conference as soon it's over.
We published a new LDAP whitepaper today on our website. 10 new LDAP RFCs were published in June 2006 (RFCs 4510-4519) to provide a new LDAPv3 specification and to replace RFC 2251 and a number of related specifications. The goal of the new whitepaper is to guide those with some basic knowledge of LDAP quickly through all of these documents. The paper, The LDAP Standard Specification, can be found by following the link.
