*******************
E-MailRelay Windows
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Setup program
=============
Installing E-MailRelay on Windows should be straightforward if you have the
setup program *emailrelay-setup.exe* and its associated *payload* files.

Run *emailrelay-setup.exe* as an administrator if you are going to be installing
into protected directories like *Program Files*.

You may need to run *vc_redist.x64.exe* first to install the Microsoft C++
run-time files.

The setup GUI will take you through the installation options and then install
the run-time files into your chosen locations.

If anything goes wrong with the installation process then you can still just
run the main E-MailRelay executable straight out of the distribution zip file.
Follow the *Manual installation* section below for more help.

Running the program
===================
After a successful installation you should see E-MailRelay listed in the Windows
Start Menu, or an E-MailRelay link under *Program Files/E-MailRelay*. This will
run the *emailrelay-start.bat* batch file to start the E-MailRelay server, and
you should then see an icon appear in the Windows system tray under the "Show
hidden icons" button.

Note that the *emailrelay-start.bat* file lives under *ProgramData*, and
although this might be a hidden directory you can still navigate there by
right-clicking on the *E-MailRelay* link under *Program Files* and selecting
\ *Open file location*\ .

Configuration
=============
E-MailRelay is configured though command-line options like *--verbose* or
*--spool-dir=c:/temp* in the *emailrelay-startup.bat* batch file.

You can edit the batch file directly using Notepad, or run *emailrelay-gui.exe*.

All command-line options are documented in the E-MailRelay reference document.

Account information can be configured by editing the E-MailRelay *secrets* file.
Look for the *--client-auth* or *--server-auth* options in the startup batch
file to find out where this is.

Manual installation
===================
The manual installation process for when you do not have the self-extracting
setup program, goes something like this:

* Create a new program directory *c:\\Program Files\\E-MailRelay*
* Copy the packaged files into *c:\\Program Files\\E-MailRelay*
* Create a new spool directory *c:\\ProgramData\\E-MailRelay\\spool*
* Create a new text file, eg. *c:\\ProgramData\\E-MailRelay\\auth.txt*, to contain account details
* Add your account details to *auth.txt* with a line like *client plain myaccount mypassword*
* Right-drag *emailrelay.exe* onto the desktop to create a shortcut for the server.
* Add *--as-server --verbose* to the server shortcut properties in the *target* box.
* Right-drag again to create a shortcut to do the forwarding.
* Add *--as-client example.com:smtp --client-auth c:\\ProgramData\\E-MailRelay\\auth.txt* to the client shortcut.

Copy the shortcuts to *Start Menu* and *Startup* folders as necessary.

Running as a service
====================
E-MailRelay can be set up as a service so that it starts up automatically at
boot-time. Do do this manually you must first have a one-line batch file
called *emailrelay-start.bat* that contains all the command-line options for
running the E-MailRelay server, and you must have a simple service-wrapper
configuration file called *emailrelay-service.cfg* that points to it, and this
must be in the same directory as the service wrapper executable
(\ *emailrelay-service.exe*\ ).

The startup batch file should contain a single line, something like this:

::

    start "emailrelay" "C:\Program Files\E-MailRelay\emailrelay.exe" --forward-to smtp.example.com:25 ...

There is no need to use *--no-daemon* and *--hidden*; these are added
automatically.

The contents of the service-wrapper configuration file can be a single
line that points to the directory containing the startup batch file,
like this:

::

    dir-config="C:\ProgramData\E-MailRelay"

Then just run *emailrelay-service --install* from an Administrator command
prompt to install the service.

Every time the service starts it reads the service-wrapper configuration file
and the startup batch file in order to run the E-MailRelay program.

If you need to run multiple E-MailRelay services then put a unique service
name and display name on the *emailrelay-service --install <name> <display-name>*
command-line. The service name you give is used to derive the name of the
*<name>-start.bat* batch file that contains the E-MailRelay server's
command-line options, so you will need to create that first.

Uninstall
=========
To uninstall:

* Stop the program and/or the service.
* Uninstall the service, if installed (\ *emailrelay-service --remove*\ ).
* Delete the files from the E-MailRelay *program files* folder (eg. *C:\\Program Files\\E-MailRelay*).
* Delete the files from the E-MailRelay *program data* folder (eg. *C:\\ProgramData\\E-MailRelay*).
* Delete any desktop shortcuts (eg. *%USERPROFILE%\\Desktop\\E-MailRelay.lnk*).
* Delete any start menu shortcuts (eg. *%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\E-MailRelay.lnk*).
* Delete any auto-start shortcuts (eg. *%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\E-MailRelay.lnk*).
* Clean up the registry under *HKLM\\System\\CurrentControlSet\\Services\\EventLog\\Application\\emailrelay*.

Diagnostics
===========
E-MailRelay logging is sent to the Windows Event Log and/or written to a log
file, and individual failed mail messages will have the failure reason recorded
inside the *.bad* envelope file.

The Windows Event Log can be accessed by running *eventvwr.exe* or searching for
\ *Event Viewer*\ ; from there look under *Windows Logs* and *Application*.

You can increase the verbosity of the logging by adding the *--verbose* option
to the E-MailRelay command-line, typically by editing the *emailrelay-start.bat*
batch script in *C:\\ProgramData\\E-MailRelay*.

Testing with telnet
===================
The *telnet* program can be used for testing an E-MailRelay server.

To install the program search for *Windows Features* and enable the "Telnet
client" checkbox.

Then run telnet from a command prompt, using *localhost* and the E-MailRelay
port number as command-line parameters:

::

    telnet localhost 25

This should show a greeting from the E-MailRelay server and then you can
start typing SMTP_ commands like *EHLO*, *MAIL FROM:<..>*, *RCPT TO:<...>*
and *DATA*.






.. _SMTP: https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

.. footer:: Copyright (C) 2001-2022 Graeme Walker
