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Scalable (incoming) mail cluster

This is one way to build a scalable mail infrastructure. Besides GlusterFS, the performance is pretty good.

"Business Case" for this setup:
  • Postfix, because it is written by a Dutchman and it supports the Proxy Protocol. Proxy protocol will preserve the original IP address and forward that to the back-end. The original IP address is needed for DNS-based blacklisting of spammers.
  • HAProxy, because it supports/invented the Proxy Protocol
  • GlusterFS, because it is a cool way to experiment with a clustered file-system and easy to setup
  • Lighttpd, because it is not Apache
  • OpenLDAP and Bind are just de facto standard applications

Topic revision: r11 - 18 Oct 2017, AdminUser
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