POP3 proxy

Warning

This module is officially deprecated since NethServer Enterprise 7.8.2003

Note

The configuration page of this module is available only in the old Server Manager and will not be ported to the new one.

Note

Since NethServer Enterprise 7.5.1804 new Email, Connectors and POP3 proxy installations are based on the Rspamd filter engine. Previous NethServer Enterprise installations are automatically upgraded to Rspamd as described in Email module transition to Rspamd

A user on the LAN can configure an email client in order to connect to an external POP3 server and download mail messages. Please note that fetched mail could contain viruses that may infect computer on the network.

The POP3 proxy intercepts connection to external servers on port 110, then it scans all incoming email, in order to block viruses and tag spam. The process is absolutely transparent to mail clients. The user will believe that they are connected directly to the provider's POP3 server, but the proxy will intercept all traffic and handle the connection to the server.

It's possible to selectively activate the following controls:

• antivirus: messages containing virus are rejected and a notification email is sent to the user

• spam: messages will be marked with the appropriate antispam scores

POP3s

The proxy can also intercept POP3s connections on port 995. The proxy will establish a secure connection to the external server, but data exchange with LAN client will be in the clear text.

Note

Mail clients must be configured to connect to port 995 and will have to turn off encryption.