Robert Schetterer wrote: > Hi @ll, > has anbody experience with > postfix behind load balancers > im planning to test > ha-proxy > pen > balance(ng) on ubuntu hardy in a HA-Cluster > in front of postfix servers >
The pro's and con's of load balancing has been discussed many times here. Search the archives for details. A different, and possibly better, way to handle the load of mail is a simple round-robin DNS or multiple MX records of the same priority. A load balance setup can, and probably will, change the TCP source. This is important in the detection of mynetworks as well as the requirement for the XFORWARD command. Otherwise, Postifx will not know the true origination and always log the load balancer as the source. A poor load balance setup can possibly allow open relay. Brian
