SMTP Buffer version 1.10

Copyright (C) Angus J. C. Duggan 1997-1998

This is a Windows NT service which accepts SMTP connections locally, and
forwards them on to another SMTP service. If the remote SMTP server is not
contactable, the messages will be queued locally and sent when the remote
server responds.

THIS SOFTWARE COMES WITH *NO* WARRANTY, EITHER EXPRESS OR IMPLIED. USE AT
YOUR OWN RISK. THIS SOFTWARE IS UNSUPPORTED. THE AUTHOR RESERVES THE RIGHT TO
IMPLEMENT WHATEVER FEATURES HE DESIRES, AND ACKNOWLEDGES NO OBLIGATION TO
CONFORM TO ANY EXISTING OR FUTURE STANDARDS.

CONFIGURATION ENTRIES IN THE REGISTRY:

In key \\HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SMTPBuffer:

POSTMASTER
	Email address of yourself; this is used for bouncing badly formed
	messages sent when off-line.
MAILHOST
	Name of the SMTP server to forward connections to.
QUEUEDIR
	Directory containing outgoing messages.
SendWait (5 min)
	Time in seconds before initially trying to send queued messages
SendInterval (10 min)
	Time in seconds between re-trying to send queued messages.
ConnectTimeout (5 sec)
	Time in seconds allowed for connecting to mailhost.
DisconnectTimeout (1 min)
	Time in seconds to hold connection open waiting for more mail.
ClientPort (25/SMTP)
	Client port number to listen for user agents.
ServerPort (25/SMTP)
	Server port number for sending messages.

COMMAND LINE ARGUMENTS:

The command line arguments supported are:

	-i	Installs the program as a Windows NT service
	-r	Removes the program from the Windows NT services
        -q      Views the outgoing mail queue
        -m mailhost
	        Sets the SMTP server
        -p postmaster
	        Sets the return address for bounced messages
        -d queuedir
	        Sets the message queue directory
	-c portno
		Sets the client port number for listening
	-s portno
		Sets the server port number for sending
        -x      Stops the service
	-K num/patt
		Deletes messages from the outgoing mail queue, selected by
		number or by subject (globbed patterns can be used to match
		subjects).
	-F start/stop/abort
		Immediately starts, stops and suspends or aborts sending of
		queued messages.
	-D num		Run debug server. Flags are:
			0x0000001	File access
			0x0000002	Socket access
			0x0000004	Data read
			0x0000008	Data written
			0x0000010	Queue building
			0x0000020	Match checking
			0x0000040	Summary construction
			0x0000080	SMTP filter writes
			0x0000100	Server responses
			0x0000200	Message bouncing
			0x0000400	Connections
			0x0000800	Registry access
			0x0001000	Reads from client
			0x0002000	Writes to client
			0x0004000	Reads from server
			0x0008000	Writes to server

	Only the last specified of -i -r -q -x -D will take effect.
	Default action is to start the service.

INSTALLATION:

Compile the programs (or use the executable provided). Create a directory
where you want it installed and copy the executable over. From within the
installation directory, run "smtpbuff -i -mhost -pemail -dqdir",
substituting the mail host to which you want buffered message to go for host,
your own email address for email, and the directory you want to use for
outgoing messages for qdir. This will install the program as an NT service.

Next time you reboot, the service will start automatically. Alternately, you
can start it immediately by opening the Control Panel, starting the Services
applet, selecting "SMTP Buffer Service", and hitting the Start button. It is
a good idea to check the application log to see that it started OK, or what
problems there were if it didn't.

Now set your email client to use localhost for sending SMTP messages.

LOGGING:

Quite a lot of events are logged to the event log service. You can check when
messages are queued and sent by looking at the application log.

                                                      AJCD 28th September 1998