RUT950 Email Relay

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Main Page > RUT Routers > RUT950 > RUT950 Manual > RUT950 WebUI > RUT950 Services section > RUT950 Email Relay

The information in this page is updated in accordance with firmware version RUT9_R_00.07.04.

Summary

Email Relay is an e-mail store-and-forward message transfer agent and proxy server. The service does three things:

  • Stores any incoming e-mail messages that it receives
  • Forwards e-mail messages on to another remote e-mail server
  • Serves up stored e-mail messages to local e-mail reader programs

More technically, it acts as a SMTP storage daemon, a SMTP forwarding agent, and a POP3 server.


This manual page provides an overview of the Email Relay functionality in RUT950 devices.

Note: Email Relay is additional software that can be installed from the Services → Package Manager page.

Email Relay Configuration

This section displays Email Relays that are currently configured on the router. By default the list is empty. To add a new email relay, enter instance name, choose service mode and press 'Add'.

Networking rutos manual email relay add new instance v1.png

Server

Networking rutos manual email relay configuration server mode v1.png

Field Value Description
Enable off | on; default: off Enables this email relay instance.
Mode Server | Proxy | Command line; default: Server Instance mode.
SMTP port integer [1..65535]; default: none SMTP Port to listen incoming connections.
POP port integer [1..65535]; default: none POP Port to listen incoming connections.
Remote clients off | on; default: off To allow connections from anywhere. By default only local allowed.
Address verifier string; default: none Runs the specified external program to verify a message recipient's e-mail address.
Domain domain name; default: none Specifies the network name that is used in SMTP EHLO. The default is derived from a DNS lookup of the local hostname.
Anonymous off | on; default: off Disables the server's SMTP VRFY command.
Server TLS off | on; default: off Enables TLS for incoming SMTP and POP connections.
TLS certificate .pem certificate; default: none Specifies a PEM-format file containing a X.509 certificate and private key.
SMTP authentication off | on; default: off Enables SMTP server authentication of remote SMTP clients.
SMTP Username string; default: none Username for authentication with the SMTP server.
SMTP Password string; default: none Password for authentication with the SMTP server.
POP Username string; default: none Username for authentication with the POP server.
POP Password string; default: none Password for authentication with the POP server.

Proxy

Networking rutos manual email relay configuration prox mode v1.png

Field Value Description
Enable off | on; default: off Enables this email relay instance.
Mode Server | Proxy | Command line; default: Server Instance mode.
SMTP port integer [1..65535]; default: none SMTP Port to listen incoming connections.
Remote clients off | on; default: off To allow connections from anywhere. By default only local allowed.
Address verifier string; default: none Runs the specified external program to verify a message recipient's e-mail address.
Domain domain name; default: none Specifies the network name that is used in SMTP EHLO. The default is derived from a DNS lookup of the local hostname.
Anonymous off | on; default: off Disables the server's SMTP VRFY command.
Server TLS off | on; default: off Enables TLS for incoming SMTP and POP connections.
TLS certificate .pem certificate; default: none Specifies a PEM-format file containing a X.509 certificate and private key.
SMTP authentication off | on; default: off Enables SMTP server authentication of remote SMTP clients.
SMTP Username string; default: none Username for authentication with the SMTP server.
SMTP Password string; default: none Password for authentication with the SMTP server.
Smarthost ip:port | domain name:port; default: none Specify the SMTP to forward emails.
Client TLS off | on; default: off Enables negotiated TLS for outgoing SMTP connections.
Client authentication off | on; default: off Enables SMTP client authentication with the remote server.
Username string; default: none Username for authentication with the remote server.
Password string; default: none Password for authentication with the remote server.

Command line

Networking rutos manual email relay configuration command line mode v1.png

Field Value Description
Enable off | on; default: off Enables this email relay instance.
Extra command line string; default: none Extra command line options.