A dummy SMTP server for Windows, Linux, Mac OS-X (and maybe elsewhere where .NET Core is available). Lets you test your application without spamming your real customers. smtp4dev support many advanced features: OpenAPI/Swagger API IMAP and POP3 access to retrieve and delete messages SMTP session logging Terminal User Interface (TUI) mode with full functionality UTF8 support Viewport size switcher to simulate mobile etc Multipart MIME inspector HTML compatibility report and HTML validation TLS/SSL with implicit and STARTTLS modes and auto self-signed cert generation Authentication Multiple mailboxes along with rules to control what message goes where Reply, compose and relay messages including rules to auto relay Scripting expressions including error simulation Exposed to the outside through port forwarding, the specific port is ·SMTP: In-service 25 · IMAP: In-service 143 · POP3: In-service 110
