EvotecIT / OfficeIMO

MIT-licensed, COM-free .NET libraries for creating, reading, editing, converting, rendering, and extracting Office, PDF, email, OneNote, and text formats.

rnwood / smtp4dev

smtp4dev - the fake smtp email server for development and testing

bkaankose / Wino-Mail

Built-in Mail & Calendars app clone for Windows.

s1t5 / mail-archiver

Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.

jstedfast / MimeKit

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

notifo-io / notifo

Multi channel notification service for collaboration tools, e-commerce, news service and more.

Sicos1977 / MSGReader

C# Outlook MSG file reader without the need for Outlook

milkshakesoftware / PreMailer.Net

C# library that moves your stylesheets to inline style attributes, for maximum compatibility with E-mail clients.

jstedfast / MailKit

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

ChangemakerStudios / Papercut-SMTP

Papercut SMTP -- The Simple Desktop Email Server