On 12 Jul 2013, at 17:15 , J Gao <j...@veecall.com> wrote: > I could use 2.10 but I thought this will be "safe" for CentOS 6.
It might just be me, but I don't consider any software that is no longer supported to be safe, especially not something as critically important as an MTA. -- A bird in the hand makes it difficult to blow your nose.