Need Lightweight .NET SMTP implementation (assembly or source)

Question

I am writing a small application that will receive messages to process over smtp port 25.

I am looking for an .NET assembly that I can incorporate that will listen to port 25 and talk SMTP. I invision that when a message arrives some event is triggered where I can read the message and process it.

Esstentilly I need to "Act" like a SMTP server but apart from receiving the message I don't need any more functionaly that you would find in a full blown SMTP server.

Let me know if you need more clarification.

Answer 1

Have you looked at this: CodeProject: SMTP and POP3 Mail Server?

Answer 2

Check this out http://igorshare.wordpress.com/2008/01/07/workflows-are-not-only-for-business-logic/

Answer 3

This sounds like what you want http://www.ericdaugherty.com/dev/cses/

Answer 4

Check out this answer.

http://stackoverflow.com/questions/550887/testing-smtp-with-net

You have answers for using local mock smtp servers or... a config setting that will make you app create messages in a Pickup folder of your choice.