MSH is a parallel processing addon for Interspire Email Marketer(IEM) which helps improve it's sending speed.
While IEM is a featureful list manager, it's mail sending speed is notoriously low for most bulk sending purposes. On the contrary, popular mail transfer agent(MTA), such as Postfix, Exim, Sendmail, Powermta etc. are actually capable of processing mails at much higher rates than IEM can deliver them to. MSH add-on covers up the lag between processing speeds of your MTA and the list manager by adding parallel processing capabilities to IEM.
With the help of MSH add-on, IEM can easily achieve an speed-up of at-least 5 times, while how far can you go is only limited by your hardware resource. You might check out the benchmark section from our original release announcement.
IEM is only slow because it's a traditional single-threaded, single-process PHP application which, by design, can not take advantage of modern computers. The way MSH addon works is by transforming it into a modern day application, capable of leveraging multi-core processors and high speed storage media with the help of parallel processing technique.
From a technical standpoint - yes it is. MSH is not a clever database hack to simulate multi-processing, behind it is a clean and elegant technology that sets it apart from others. Reasons you might consider MSH for -
Also, our marketing partners sell the add-on with different brandings. If the add-on you are considering is from one of these sites, you are actually buying MSH. You are more than welcome to make a purchase through them.
Imagine an office worker who is overloaded with her desk full of files. She takes the files one by one, reviews them and then places them in a seperate pile so that her personal assistent can pick it up. Her day to day job is not only boring but also painstalkingly slow. Now replace the office worker with Interspire Email Marketer and her office assistent with your MTA of choice - you get the picture of how IEM processes campaigns and why it acts so slow while processing large campaigns.
Let's imagine an alternative situation where our ordinary worker becomes extra-ordinary and learns 'dark magic'! She magically makes five clone copies of herself along with the desk, places them in her office and then distributes the pile of files to all of them. While she is just handing over the files, her clones are busy processing them. This time, our clever worker will complete her works in one fifth of the previous situation. Interestingly, her office assistent will have an unusually busy day too. Finally, replace 'dark magic' with MSH add-on!
A complete list of our partners who sell MSH under various brandings -
While we don't mind having competitors, it gets totally annoying when someone sells other people's software as their own, with backdoors installed to transmit subscriber information to the crooks.