The Acceptance & Routing > Routing Basic Settings page allows system administrators to configure message relaying and customize SMTP Outgoing actions for all or part of the email communication.
But when the sender is outside your local area network, either on the road or needs to work from home, you will want to allow relaying. Make sure you check the Require authentication option so relaying is possible only for users that have accounts on the server and can authenticate using a username and password.
Depending on the above setting you can configure a list of IPs or IP ranges with specific delivery settings by adding them to this section. To edit the details of an already added IP or range hit its corresponding Edit button, to delete it click its respective Delete button.
Allow / Disallow relaying
Servers that Allow relaying from any IP will accept and try to deliver email messages no matter the destination or sender. This is called an "open relay" server. It is necessary to restrict relaying in order to avoid the server being flooded by spammers.But when the sender is outside your local area network, either on the road or needs to work from home, you will want to allow relaying. Make sure you check the Require authentication option so relaying is possible only for users that have accounts on the server and can authenticate using a username and password.
Depending on the above setting you can configure a list of IPs or IP ranges with specific delivery settings by adding them to this section. To edit the details of an already added IP or range hit its corresponding Edit button, to delete it click its respective Delete button.
Should you like to add a new IP or IP range, hit the Add IP/Range button, select one of the available options: Network/Mask, IP Range or Single IP and fill in its corresponding details in the displayed text box.
Outgoing delivery settings
Select message delivery either trough DNS MX entry or smart host. If you choose the second option fill in the requested details in the Host/IP and Port text-boxes and all messages will be sent to the specified host. To make sure the message transmission is secure check the Use SSL connection option.
Enable authentication
Should you like to enable username/password authentication when delivering messages trough smart host check the box in front of the Enable authentication option and fill in the username and password details in the available text boxes.
You can also specify the authentication mechanism to be used. Available types are: Plain, Login, CramMD5 and/or DigestMD5 (all types of authentication are allowed).
Connection settings
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Enable the Use StartTLS if available option to establish a secured session before transferring any sensitive data (such as authentication details or message text when authentication is not required) if this type of encrypted session is supported by the peer server.
Should you like to have messages sent through a specific network interface check the box in front of the option called Local network interface, then use the drop-down menu to select between using the system default network interface or a custom one. In the latter case fill in the corresponding IP in the available text box.
To set a SMTP connection timeout for outgoing messages check the box in front of the Outgoing SMTP connection timeout, then use the up and down arrows to specify the value. Use the drop-down menu to select the value of the timeout (seconds, minutes or hours).
Domain specific configuration
Set up custom routing settings for certain domains in the Domain specific configuration section. To edit the details of an already added domain hit its corresponding Edit button, to delete it click its respective Delete button.
Should you like to add a new domain, hit the Add Domain button and choose the desired options fill in the corresponding details.
When you are done configuring these parameters, remember to hit the Save Configuration button to preserve your changes.