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Chapter 6 – RouteFinder Software
Multi-Tech Systems, Inc. RouteFinderVPN RF760/660/600VPN User Guide (PN S000323D) 73
Proxy > SMTP Proxy
SMTP Proxy Example
An entry Company.com covers all further sub-domains; for example, subsidiary1.Company.com and
subsidiary2.Company.com. The RouteFinder must be the MX (Mail Exchanger) for Company.com.
Incoming emails to non-registered domains are rejected (except for senders listed in Mail relay for below).
Confirm every registered domain by clicking the Add button. The domains are entered into a window from
which the entered domains can be deleted again at any time.
Mail relay for
Select all the networks from the select menu that are allowed to use the SMTP proxy on the
RouteFinder. Networks not entered here can only use the SMTP proxy to send emails to the above
listed domains. Confirm every selected network by clicking the Add button.
Note: If you assign Any, then everybody connected to the Internet can use your SMTP proxy for
SPAM purposes.
SMTP Routes
Determine the MTA (Mail Transfer Agent) to which each incoming domain is forwarded. The MTA is
determined by its IP address. You can also configure the forwarding of email into your internal
messaging system here. If you want to use the SMTP proxy as the SMTP relay (also often called
"SmartHost“) for your internal email server, configure it to use the internal address of your
RouteFinder system as a relay. However, for this to work, the IP address of your internal email server
must have been entered in the Mail relay for select menu. (Remember to insert the forwarding of the
domains to your internal email server.)
All outgoing mail is then forwarded via the SMTP proxy of the RouteFinder.
All settings are immediately active and are preserved after leaving the Proxies > SMTP menu.