Simulating Email in .NET


 

The trick to doing this is not to hardcode things like host, port, etc. for your SMTP server when you use System.Net.Mail to send mail. Instead, use the default ctor for SmtpClient.

What you’re telling .NET by using the default ctor for SmtpClient is, "please use my config file to figure out how to send mail". Now you can use the system.net/mailSettings/smtp section in config to specify the details of your mail server.

During development, I use different settings because I don’t usually want to deal with the hassle of installing an SMTP server on my development box. Instead, I want email messages delivered as individual files in a directory on my hard drive (I always have a c:\mail directory on my development box for just this purpose):

<configuration>
<system.net>
<mailSettings>
<smtp deliveryMethod="SpecifiedPickupDirectory">
<specifiedPickupDirectory pickupDirectoryLocation="c:\mail"/>
</smtp>
</mailSettings>
</system.net>
</configuration>

Via Simulating Email in .NET

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