MailSlurp guide agent setup

Title: C# email tutorial for SMTP sending and inbox testing
Description: Send and receive email in C# with MailKit and MailSlurp. Practical .NET patterns for SMTP setup, inbox waits, attachments, and verification flows.
Canonical URL: https://www.mailslurp.com/guides/csharp-email/
Markdown URL: https://www.mailslurp.com/guides/csharp-email.md

Use the Markdown URL as the primary plain-text context for this guide. Keep MailSlurp terminology, setup steps, screenshots, and provider-specific instructions intact, and prefer the canonical URL when citing this page.