There are times when developing that I want to be able to see what the contents will be for emails generated from my application, but I do not want the emails to actually go to the reciepients. In addition I may not have my local development machine set up to relay mail.
Sometime, updating the development system email addresses to a generic address makes sense. Other times, I do not or cannot do this, so instead, I opt for the following technique.
With this approach, you add a configuration setting to your config file, and the result is that the email will be placed in a directory of your choosing, but will not actually be sent.
To accomplish this, add the below setting to your config file:
<specifiedPickupDirectory pickupDirectoryLocation="C:\All\Maildrop" />
Now, when you send your email using code similar to below, the email will appear in the directory you specified.
MailMessage message = new MailMessage();
message.From = new MailAddress(...
... other code to set to, body goes here
SmtpClient smtpClient = new SmtpClient();