Hannes Preishuber


  • free pop3 for Windows 2012 Server

    Our team develops tools for Windows Server. Fifteen years ago we started with a pop3 queuing (popConnect) tool. We offer a free extender for the IIS SMTP Service to support pop3.

    ·         You want to provide emails from any source (e.g. IIS, SharePoint, …) for POP3 retrieval by any mail client (e.g. Outlook, Thunderbird, …).

    ·         You used the Microsoft POP3 Service in Windows Server 2003 and miss the feature after migrating to Windows Server 2012 or Windows Server 2008.

    ·         You are looking for a free POP3 Server.

    ·         You don’t need or want all the capabilities of Microsoft Exchange and you want a small, performant solution to provide your emails.

    Visendo SMTP Extender is a full POP3 server that runs as a Windows service, originally developed for Windows Server 2008, as a substitute for the missing POP3 service there. It monitors an e-mail drop folder, such as IIS "mailroot\drop", and provides the e-mails to clients for collection via the POP3 protocol.

    About 5 years ago, Visendo Software, a department of ppedv AG, released the first version of Visendo SMTP Extender.

    Since then, we continually developed and improved the software:

    ·         better RFC compliance

    ·         higher stability

    ·         easier to install, configure and use

    ·         mailbox overview with mail size and count

    for more detailed information check the complete changelog and version history: http://support.visendo.com/default.aspx?g=posts&t=686

    product website: http://www.visendo.com/smtpextender.aspx

    There are several guides, also from third parties, to help you installing and configuring your email environment.

    How to configure IIS SMTP Server in combination with Visendo SMTP Extender:


    How to configure Sharepoint in combination with Visendo SMTP Extender:

    http://en.hugon.ws/articles/sharepoint-2010/installing-and-configuring-smtp-and-pop3-services-for-sharepoint-2010/ *

    http://mosshowto.blogspot.de/2010/05/installing-smtp-pop3-sharepoint-2010.html *

    *this was with an older version of SMTP Extender. You can use the admin interface instead of editing the config file manually now.

    You can download Visendo SMTP Extender here:

    Community Edition (free): http://www.visendo.com/VisendoDownloads.aspx?id=42

    Plus Edition (99 € / 30 day trial): http://www.visendo.com/VisendoDownloads.aspx?id=52

    Differences: the Plus Edition supports unlimited client connections, parsing of multiple custom destination header fields and other advanced features.

    Please let us know if you like SMTP Extender.

    Get in touch by Email: support[at]ppedv.de

    Comments are disabled, cause of blog spamming.


  • Update Visendo SMTP Extender Update

    Our team from ppedv (credits to Cosmin) have released the new edtion based on your feedback.

    Visendo STMP Extender, extends the SMTP Server from Windows 2008 (and R2) to the POP3 protocol. So in fact you get the possibilty to pull mails via POP3 from your IIS 7 based webservers.  

    Download and Info


    Its free, costs nothing.

    The Visendo team develops: Fax Server (also for ISDN), Anti Spam and pop3 pulling (popconnect). The SMTP Extender is a spin of from that team and code base. Enjoy it.


  • 302: this blog will be closed

    After nearly 7 years I will discontinue blogging on this site. My resources are limited. You can reach my German blog which is used to support my customers. Looking back to a long an interesting journey

    ASP.NET by ScottGu

    That was the reason to attend this site and support Microsoft as much as I can. For that I was honored as ASP.NET MVP- thanks again. Meet Scoot several times. Great guy!


    I have left NNTP forums a few years ago and now Microsoft closed it- It was my idea ;-)


    Was the wrong way- JQuery won the game


    That is really a great plattform and the IIS team rules. I am sad that is so silent around that topic.

    ASP.NET after 2.0

    Is no longer my world. I love ASP.NET and ASP.NET Server controls. I hate the discussion about how to follow the holy rules of MVC. Microsoft have dropped the goal to bring ASP.NET to #1 and accepted PHP is it.

    Facebook & Twittering

    Microblogging takes over a part of the blogging business. Shorter faster cheaper- or as SteveB mentioned - do more with less.


    Google is taking over the web. I am using Bing every time as I can but Google have more options. Sorry Microsoft you will loose that game.


    That is not the biggest problem of Microsoft. the Ixxx takes over a small part but big money of the market, but the customers are not strongly linked. New wave new hype- Game over Apple.


    My new home. I can reuse a lot of my skills and love the possibilitys. Silverligth will passing WPF-and strike Flash

    Windows phone 7

    Also my skills fit. I just will use it for fun. I am not really satisfied about what I have heard from MIX. Guys from Redmond, I am sad to say you have been the best Smartphone OS and lost everything.

    The ADO vNext Story

    That will be the next mystic point. WCF, REST, JSON, ATOM and now OData. Nothing about SQL commands. LINQ, ORM is also not the final solution for multilayered disconnected async scenarios. Personally I prefere the OData idea and dislike the Swiss Army Knife (German Eierlegende Wollmilchsau) WCF.

    I am still in INETA Speakers board and I am glad to come to your user group. In all other cases you can hire me over ppedv AG.

    Good by and have good live.


  • Adhoc testing of .NET RIA Services

    Suddenly my Silverlight 3 application breaks during development process. Cause I have installed Visual Studio 2010 a few hours before, I was sure: must be something with 2010. After uninstall and reinstall SP1 everything worked fine, except .NET RIA services :-(


  • ASP.NET have left the track?

    I am a fan of ASP.NET. I have teached hundreds of peoples, written some books, have been MVP for that topic. But now I have doubts. Today I try to build a special kind of user navigation experience. I learn ASP.NET have stopped to grow since version 2.0. ASP.NET 2.0 is the most productive web (even UI ) development technology in the market. But today's needs have changed. For my site I need a Menu control which popup horizontal. Menu control is the same since 2.0 and can only vertical. Some tricks based on ASP.NET CSS friendly control adapters does not work cause the development of CSS adapters was stopped in early 2007 (or truly give over to community which is the same). My need is a second static tabbed main menu without dynamic popup. This can be set by MaximumDynamicDisplayLevels to 0. CSS Adapters ignore this setting so I cant use it.


  • Silverlight Twitter Client with authentication

    Its not easy to access a cross domain RSS feed. But it is nearly impossible to do same with authentication. HTTP Client stack and HTTP browser stack in Silverlight 3 and beyond does not support authentication. All tricks with manipulating HTTP header throw some not implemented exception.


  • Silverlight 3 Visual Studio 2008 Designer Preview

    Documentation says that Design Preview in Silverlight 3 Tools for Visual Studio 2008 is away. The preview with Silverlight 2 was only read only and sucks. OK is bad but no preview is even worse. When you right click a XAML file there is still context menu “view Designer”.


  • Silverlight 3 Beta to RTW changes

    It is very important that your applications are ready for Silverlight 3. If you have developed with the Beta bits you have to do a lot of changes to get ready for RTW. There exists a document changes.docx which I can not find at the moment. For that reason I decided to make a copy public on my private server.

    If you run a Silverlight 2 application no action is necessary. The SL3 plugin can host SL2 applications. So there are no breaking changes between 2 and 3!

    There are a set of bugs fixed in SL 3 related to SL 2. For compatibility reasons Silverlight plugin detects and change to quirks mode running SL 2 applications in a bug friendly mode.

    [Update]thanks to Tim Heuer: link is http://msdn.microsoft.com/en-us/library/cc645049(VS.95).aspx. Saves traffic on my server ;-)