A simple console email sender to send reports from batch files without any configs.

Проект развивает Дмитрий Евдокимов Размещается на GitHub


Build status GitHub Release

A simple console email sender to send reports from batch files without any configs.


Just compile with your target .NET (2.0, 3.5, 4.0+) on your Windows by its bundled C# compiler:

C:\Windows\Microsoft.NET\Framework\...\scs.exe /out:Mailer.exe /recurse:*.cs

Use enclosed simple make.cmd with preset paths for these .NET. Of course you can use MSBuild itself.


Run without arguments (or with ‘?’ in any place) to get help.

Mailer.exe ?

Use at least one argument in such order:

Mailer to subject body attach

If instead to is ‘-‘, it will be used the parameter from source (see Parameters.cs below). You can write a few recipients separated by ‘,’ (or ‘;’, they will be properly replaced).

If subject or body starts with:

  • ’-‘ take content from a file in DOS 866
  • ’=’ take content from a file in Windows 1251
  • ’*’ take content from a file in UTF-8

Additionally after subject ‘:’ you can specify a number of line in that file (from top or bottom, if negative). Default is 1 (the first line from top of file).

Same after body you can specify a number of lines of that file (from top or bottom, if negative). Default is 0 - entire file.

In attach you can specify a few filenames separated by ‘,’ and ‘;’ (it is adjustable - see below).

If an argument contains spaces, it must be enclosed with quotes “”.

If no arguments or there is ‘?’ somewhere, it will be shown this Usage text.


Mailer Test
Mailer,, Test Body-text
Mailer - "Test subject" "Long body text with spaces."
Mailer - "Test DOS file" -filename.txt
Mailer - "Test Win file" =filename.txt
Mailer - "Test UTF file" *filename.txt
Mailer - "Test include" "-Body from DOS 866.txt"
Mailer - "*Subject from UTF-8.txt" "-Body from DOS 866.txt"
Mailer - "Top 10 lines" -c:\filename.txt:10
Mailer - "Last 5 lines" -c:\filename.txt:-5
Mailer - report.txt "" report.txt
Mailer - -report.txt:2 "Date in subj, file attached." report.txt
Mailer - =error.log:-1 "Last error in subj!"
Mailer - Files "3 attachments." file1.txt,file2.txt,file3.txt
Mailer - "Just files" "" "Report 2016.xlsm, My Doc.docx"

Exit codes for ERRORLEVEL

(They still can be changed during the further development.)

  • 0 - Normal
  • 1 - Email sending was canceled
  • 2 - Shown Usage
  • 3 - Wrong argument
  • 4 - File not found


        /// <summary>
        /// The email server's IP or DNS host name (if empty: gateway).
        /// </summary>
        public const string HOST = "";

        /// <summary>
        /// The TCP port of SMTP. Default is 25.
        /// </summary>
        public const int PORT = 25;

        /// <summary>
        /// Use the secured connection.
        /// </summary>
        public const bool SSL = true;

        /// <summary>
        /// The timeout in ms.
        /// </summary>
        public const int TIMEOUT = 60000;

        /// <summary>
        /// The sender's name.
        /// </summary>
        public const string NAME = "Sender";

        /// <summary>
        /// The sender's email.
        /// </summary>
        public const string FROM = "";

        /// <summary>
        /// A login to the SMTP server.
        /// </summary>
        public const string USER = "";

        /// <summary>
        /// A password encoded in Base64. Do not store any passwords as a plain text!
        /// </summary>
        public const string PASS = "********";

        /// <summary>
        /// Email(s) by default. Maybe separated by ',' signs.
        /// </summary>
        public const string TO = "";

        /// <summary>
        /// An array of chars to be list separators.
        /// </summary>
        public const string LIST = ",;";

        /// <summary>
        /// An array of signatures to read files in the proper encoding: -DOS 866 (0), =Windows 1251 (1), *UTF8 (2).
        /// </summary>
        public const string MODE = "-=*"; // DOS 866, Windows 1251, UTF8


Licensed under the Apache License, Version 2.0.