ActiveQ
by Active Up SPRL

  ActiveQ is a free mail queuing service with extended task scheduling support written in 100% managed C#.NET. This service will allow you to send thousands of queued emails in a few minutes and also schedule mail for later delivery. Standard queuing is becoming required when sending a newsletter to thousands of subscribers.

Scheduled emails can have a very powerful use in a CRM system. For example if a user downloads the latest version of your software, you would like to send him a confirmation email the same day, but also another email 7 days later to ask him if his evaluation is going well and if he needs assistance. You might also like to send an email to the customer 30 days later with information on how to register as well as a link to a form where they can input their impressions, suggestions etc. Using ActiveQ, you will be able to send these 3 emails in few seconds: the first will be delivered immediately (Standard Queuing) and the two others will be scheduled (Scheduled Queuing).

ActiveQ was designed with performance in mind, so it includes a multi-thread processing architecture to send multiples emails at a time. You can configure the number of threads used or you can let ActiveQ automatically adjust itself based on the performance/resources available for the requests.

While not required, ActiveQ supports a list of SMTP servers for redundancies. If no SMTP server is specified, ActiveQ will use the DirectSend technology of ActiveMail component.

ActiveQ is fault tolerant. In case of a server crash, no queued mail is lost. The system will automatically reload them at startup.

Another big feature of ActiveQ is the ability to allow you or your users to build an XML file containing scheduled tasks. A task consists of a URL (HTTP) to query (POST or GET method) and a list of triggers. Triggers include daily, weekly, monthly, or a specific day, week or month of year.

Related software:
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