smtp

A cross-platform .NET library for IMAP, POP3, and SMTP.

Papercut SMTP -- The Simple Desktop Email Server

All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.

A SMTP Server component written in C#

Mailozaurr is a PowerShell module that aims to provide SMTP, POP3, IMAP and probably some other ways to interact with Email. Underneath it uses MimeKit and MailKit libraries written by Jeffrey Stedfast.

Smtp server for mass emailing, managing email lists and more. Built on .NET Core. Linux, MAC and Windows compatible.

netDumbster is a .Net Fake SMTP Server clone of the popular Dumbster

MailMergeLib is a mail message client library which provides comfortable mail merge capabilities for text, inline images and attachments, as well as good throughput and fault tolerance for sending mail messages.

基于 Net.Mail 封装的发送邮件工具类。仅需一行代码，发送邮件。支持自定义邮件发出邮箱、发出方名字等。 支持SSL加密发送。 多个接收人、抄送人。支持群发独显。 支持添加附件、多个附件。 目前大部分主流邮箱全支持。

Smart Bulk Email Sender with Mail Merge, Delay between Emails and HTML Content

Send and receive emails easily, fluently, with one line of code for each operation.

.NET email library and proxy supporting IMAP, POP3, and SMTP with S/MIME and PGP.

Collecto is an open source & self-hosted forms backend.

A professional, high-performance SMTP server library for .NET with minimal dependencies. Features TLS/SSL, authentication, rate limiting, and extensible architecture for building custom email servers.

GemBox.Email is a .NET library that enables you to read, write, and convert email files (MSG, EML, and MHTML), or send and receive email messages (POP, IMAP, SMTP, and EWS) from .NET applications in a simple and efficient way.

For use receiving email via SES, delivers email to S3, indexes mailboxes in DDB and broadcasts rich inbound email events via EventBridge.

SMTP Server in C#

a small temp mail server

SMTP gateway that forwards received emails to specified Telegram chats via your Telegram bot

📬 Alternative Mail target for NLog using MailKit