SMTPRelay is a Relay or Proxy server for sending email, and was born of the need to send email from a PC that is not connected to the Internet, but is a member of a private network with access to the Internet. It consists of 3 projects, all of which use the Unicode compatible NewSocket Class.
prjRelay is more or less a demonstration program. By default there is no SMTP Server defined, and the program responds with it's own SMTP responses. Remove the comment on the 'Server = "smtp.isp.net" line and add your own SMTP server. Then Telnet or use an email program from elsewhere on the network on port 25. The program should relay an email similar to:
<-- 220 cmta14.telus.net TELUS ESMTP server ready
--> HELO me
<-- 250 cmta14.telus.net hello [206.116.168.96], pleased to meet you
--> MAIL FROM: <xxxxxxx@telus.net>
<-- 250 2.1.0 <xxxxxxx@telus.net> sender ok
--> RCPT TO: xxxxxxx@pobox.com>
<-- 250 2.1.5 <xxxxxxx@pobox.com> recipient ok
--> DATA
<-- 354 enter mail, end with "." on a line by itself
--> To: <xxxxxxx@pobox.com>
--> From: <xxxxxxx@telus.net>
--> Subject: Test Message!
-->
Testing SMTP server speed!
--> .
<-- 250 2.0.0 BUdk1o00E257f4m01UdkC4 mail accepted for delivery
--> QUIT
<-- 221 2.0.0 cmta14.telus.net TELUS closing connection
prjSRSvc is the same thing without the ability to produce it's own responses, but is designed to run as a service. There are no visible forms or controls, and the SMTP Server, the Listening Port, and the Connecting Port are all defined in the registry. A word of caution is necessary here. When compiled, installed as a service, and activated, it will not automatically update the Windows Firewall (at least not in Win 8.1). To facilitate this, run the compiled executable directly. You will have to use the Task Manager or reboot the system to shut the program down as there is no visible interface.
prjInterface is the visible program used to manage the service. It will Install/Uninstall the service, Start/Stop the service, and Setup the registry values. Because the registry entries are in a section of the registry to which the System has access, it must be run in Administrative Mode. It uses the Microsoft NTService Control, which is readily available on the Internet.
J.A. Coutts
prjRelay is more or less a demonstration program. By default there is no SMTP Server defined, and the program responds with it's own SMTP responses. Remove the comment on the 'Server = "smtp.isp.net" line and add your own SMTP server. Then Telnet or use an email program from elsewhere on the network on port 25. The program should relay an email similar to:
<-- 220 cmta14.telus.net TELUS ESMTP server ready
--> HELO me
<-- 250 cmta14.telus.net hello [206.116.168.96], pleased to meet you
--> MAIL FROM: <xxxxxxx@telus.net>
<-- 250 2.1.0 <xxxxxxx@telus.net> sender ok
--> RCPT TO: xxxxxxx@pobox.com>
<-- 250 2.1.5 <xxxxxxx@pobox.com> recipient ok
--> DATA
<-- 354 enter mail, end with "." on a line by itself
--> To: <xxxxxxx@pobox.com>
--> From: <xxxxxxx@telus.net>
--> Subject: Test Message!
-->
Testing SMTP server speed!
--> .
<-- 250 2.0.0 BUdk1o00E257f4m01UdkC4 mail accepted for delivery
--> QUIT
<-- 221 2.0.0 cmta14.telus.net TELUS closing connection
prjSRSvc is the same thing without the ability to produce it's own responses, but is designed to run as a service. There are no visible forms or controls, and the SMTP Server, the Listening Port, and the Connecting Port are all defined in the registry. A word of caution is necessary here. When compiled, installed as a service, and activated, it will not automatically update the Windows Firewall (at least not in Win 8.1). To facilitate this, run the compiled executable directly. You will have to use the Task Manager or reboot the system to shut the program down as there is no visible interface.
prjInterface is the visible program used to manage the service. It will Install/Uninstall the service, Start/Stop the service, and Setup the registry values. Because the registry entries are in a section of the registry to which the System has access, it must be run in Administrative Mode. It uses the Microsoft NTService Control, which is readily available on the Internet.
J.A. Coutts