Question 1

How to test email attachments with netDumbster?

Accepted Answer

In netDumbster, attachments are accessed through the MessageParts property of a received email. You can loop through MessageParts to identify attachments by checking content types and inspect their data. Refer to the source code for examples on handling binary data.

Question 2

netDumbster vs MailHog: which is better for .NET testing?

Accepted Answer

netDumbster is lighter and .NET-native, ideal for simple unit tests, while MailHog offers a web UI and broader SMTP features but requires separate setup. For pure .NET environments focused on code-level inspection, netDumbster is more integrated.

Question 3

Can netDumbster simulate SMTP authentication?

Accepted Answer

No, netDumbster does not support SMTP authentication simulation. It's designed as a basic fake server, so you'll need alternative tools or mocking for auth-related testing in your applications.

Question 4

How to integrate netDumbster into xUnit or NUnit tests?

Accepted Answer

Start the server in a test setup method using SimpleSmtpServer.Start, then capture emails in your test assertions. Ensure you stop the server in a teardown to avoid port conflicts, as shown in the usage examples.

Question 5

Does netDumbster work with .NET 6 and above?

Accepted Answer

Yes, netDumbster supports modern .NET versions, including .NET Core and .NET 6+, as indicated by the dotnetcore badge in the README. Check the GitHub workflows for compatibility details.

Question 6

What are the limitations for testing HTML emails?

Accepted Answer

netDumbster captures HTML email bodies as raw data in MessageParts, but it doesn't parse or render HTML. You'll need to manually extract and validate the content using string operations or external libraries.

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