Applies to: SmarterMail 3.x
Please note that SmarterMail was designed to support one server in several of these roles. For instance, one server could act as an Incoming Gateway, an Outgoing Gateway, and a Backup MX.
SmarterMail can also take on one of these roles when placed together with a competing mail server product. For example, using SmarterMail as an outgoing gateway on a server other than your primary mail server may help to resolve problems with stability of other mail server software products.
Incoming Gateway server
- Use to host third party anti-virus and/or anti-spam software products in order to reduce load on primary server
- Reduces load on primary server by managing all incoming sessions and performing abuse/intrusion detection
To configure :
- Enable domain forwarding and add all destination IPs and domain names that will be forwarded
- Add a placeholder domain (called “example.com”) to open up the port to listen on
- In DNS, change the MX records of your domains to reference the new gateway server
- Install and configure any third-party anti-virus or anti-spam products, such as Declude, JunkMail, or Anti Virus.
Outgoing Gateway server
- Use as a delivery mechanism to reduce load on your primary servers
- Also use as a method to combat blacklisting. If the server gets blacklisted, rotate the primary IP on the network card to a different one to send out on the new IP
To configure:
- Add a placeholder domain (called “example.com”) to open up the port to listen on.
- Set relay option in General Settings to “nobody”
- Add the primary mail server’s IP addresses to the IP Whitelist for SMTP
- In your primary mail server's General Settings page, set the IP address of the gateway server and enable gatewaying.
Article ID: 24, Created On: 2/2/2005, Modified: 4/11/2010