RUT142 Email Relay

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Main Page > RUT Routers > RUT142 > RUT142 Manual > RUT142 WebUI > RUT142 Services section > RUT142 Email Relay

The information in this page is updated in accordance with firmware version RUT14X_R_00.07.10.

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 RUT142 devices.

Note: Email Relay is additional software that can be installed from the System → 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'.

Server

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

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

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