Hi dear postfix users! >From the version 2.7 we've got fantastic new feature - sender_dependent_default_transport_maps which "allow sending mail with source IP addresses that depend on the envelope sender".
This option is very useful for defining reverse dns parameter for each ip to let mail from corresponding domain be high trusted for Gmail and other mail providers. (I hope I understand all above correctly. :-) But in current versions of popular server OS like Centos 6.5 we have old postfix versions like 2.6.6 which make impossible to use sender_dependent_default_transport_maps. When I've installed Virtualmin on my new Centos 6.5 box it told me: ----- Mail server Postfix is installed and configured. Your Postfix version does not support per-domain outgoing IP addresses. ----- I googled hard to find some tutorial/manual how to install backport of postfix on Centos 6.5 but I could not find any! Also there is no information regarding this question on the postfix/centos sites... Could anybody create such manual for me? Thanks! Danil