Anthony Johnston
Get Support

SMTP Server For Developers

Version 2 (SMTP Impostor) now available

When I moved my development machine to Vista I soon realised that there was no SMTP Server included as there was in XP Pro

So… I got to writing one and this was the result

It doesn't actually send e-mails, it just emulates an SMTP server and writes the e-mail to a given directory

This allows you to test the e-mail functions of the applications you are writing

It can be deployed to any machine on your network and act just like the real thing… except for the sending bit, as mentioned

In a bid to engraciate myself on the larger development community this is an Open Source project, horrah!

For .Netters you can simply add a setting to your Web.Config, but where's the fun in that

        from="[from address]">


Screenshot of Antix SMTP Server for Developers

(click to enlarge)

Downloads & Source

The latest version setup file

Once installed the application will check for new versions on closedown

This is called ClickOnce by Microsoft

The source is available now at


If you find a problem with the application, please fill in the support form giving the full version details and how to reproduce the issue

Your help would be very much appreciated

Get Support (all fields are required)

please add the version, if you know it

please describe the problem including steps for me to reproduce it

also include your operating system or browser where applicable

On Twitter Follow MrAntix on Twitter

stigstar 39 minutes ago

RT @TJoudeh: I Blogged: Secure your ASP .NET Web API 2 using Microsoft Azure Active Directory @DanWahlin #webapi #AzureAd

Modulus83 42 minutes ago

RT @golubbe: @scottgu discussing @docker and @Microsoft bringing Docker & DockerHub to @Windows @Azure

james1052 One hour ago

.@SwiftOnSecurity tell @markrussinovich @Azure is wasting resources by shredding with 7 passes when only 1 is needed.

andrewbrust One hour ago

@clemensv I nonetheless appreciate the appliance approach to Windows Azure Pack. Except that it should now be called Microsoft Azure Pack.

AlbelleeLadki One hour ago

RT @TrainerKrunal: working on Windows Azure Mobile Service..soon going to publish a blog on it.