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CMail
CMail is a free Windows command line mailer with advanced message formatting options. subtitle
CMail is a command line e-mail sending tool. It was originally developed to assist with testing mail server and content analysis software. As a result, CMail provides many more message formatting and SMTP session control options than similar software.
Features
- Flexible configuration via files or the command line and optional GUI provided by CMailGUI.
- TLS/SSL (including TLS 1.3) via STARTTLS or SMTPS (SSL-enabled version). Built-in, stunnel not required.
- Support for adding multipart/alternative HTML message bodies (UTF-8) and embedded images.
- SMTP authentication using CRAM-MD5, PLAIN, LOGIN, OAUTHBEARER and XOAUTH2.
- Unlimited attachments using base64, quoted printable or uuencoding.
- Wildcard attachment support to attach directory content.
- Unlimited To/Cc/Bcc recipients, with aliases and DSN options for each if desired.
- Message bodies using plain text, base64, or quoted printable encoding.
- IPv6 support.
- DKIM signing (RSA and Ed25519).
- Delivery Status Notification and Message Disposition Notification (Read receipt) support.
- Read message body from command line, stdin or file.
- Sending via SOCKS or HTTPS proxies.
- Works with GMail using App Passwords or user-supplied OAUTHBEARER/XOAUTH2 tokens.
- Written entirely in C - no need for .NET libraries, Java, or other prerequisites.
- No installation required. Download, extract, use.
- Free for private and commercial use.
