User's Manual

USER MANUAL

Peplink Balance Series

Some ISPs require their users to send e-mails via the ISP’s SMTP server.All outgoing SMTP connections

are blocked except those connecting to the ISP’s. The Peplink Balance supports theinterception and

redirection of all outgoing SMTP connections (destined for TCP port 25) via a WAN connection to the

WAN’s corresponding SMTP server.

To enable the feature, select the Enable check box under SMTP Forwarding Setup. Check the box

Enable Forwarding for the WAN connection(s) that needs such forwarding. Under SMTP Server, enter

the ISP’s e-mail server host name or IP address and under SMTP Port, enter the TCP port number for

each WAN.

The Peplink Balance will intercept SMTP connections, choose a WAN port according to the Outbound

Policy, and then forward the connection to the SMTP server if the chosen WAN has enabled forwarding.

If the forwarding is disabled for a WAN connection, SMTP connections for the WAN will be simply be

forwarded to the connection’s original destination.

Note

If you want to route all SMTP connections only to particular WAN connection(s), you should create a custom rule

in Outbound Policy (see Section 14.1).

21.4.2 Web Proxy Forwarding

When this feature is enabled, the Peplink Balance will intercept all outgoing connections destined for the

proxy server specified in "Web Proxy Server Interception Settings". Then it will choose a WAN connection

accordingto theOutbound Policy and forward the connectionto the specified web proxy server and port

number. Redirected server settings for each WAN can be set here. If forwarding is disabled for a WAN,

then web proxy connections for thatWAN will simply be forwarded to the connection’s original destination.