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Xcitium Secure Email Gateway MSP

Xcitium Secure Email Gateway MSP

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Get Started > Outgoing Filter Configuration > Outgoing Smarthost Setup > Configure PostFix To Use A Smarthost
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Configure PostFix to use a Smarthost

 

You should provide the hostname of the DAS server that you are using as your preferred CSEG service domain.


Route all mails to a smarthost:


These instructions assume the postfix config files live in /etc/postfix/main.cf


In/etc/postfix/main.cfadd the line:


 European Union


relayhost = mxpool1.spamgateway.comodo.com:587


United States


relayhost = mxpool1.us.spamgateway.comodo.com:587


Routing all mails for a specific domain to a smarthost :


Note: The information below relates to a very specific customer requirement and is not recommended for most deployments. A configuration like this can cause problems which will be hard to troubleshoot. Unless you are sure you need to use this setup, please explore the other available options for routing mail.

 


Add a line to /etc/postfix/transport:

European Union

example.com smtp:mxpool1.spamgateway.comodo.com:587


United States

example.com smtp: mxpool1.us.spamgateway.comodo.com:587


postmap hash:/etc/postfix/transport

To use the transport file, add or edit a line in /etc/postfix/main.cf:

transport_maps = hash:/etc/postfix/transport


Restart Postfix and all mail. The mail for selected domains should go trough the Smarthost.
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