This was just posted on the Postfix list. CentOS 7 ships with:
Has this cert advisory been applied to the CentOS build of Postfix?
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2.10.1 is way later than 2.2.11, this bug was never in any version of postfix that shipped after CentOS 4.
Too busy getting ready for Passover, and not looking carefully enough at the numbers.
I better get back to what I should be doing right now.
See you all Thursday.