I had issues with this (my blog) so having five instances of postfix i reintroduced it, I have no idea why nobody works and the other policyd-spf user does not. However policyd-spf does induce
postfix/smtpd[x]: warning: problem talking to server private/spf-policy: Connection reset by peer
So change policyd-spf in master.cf, and add the spf checks in main.cf otherwise it will not get called.
policyd-spf unix - n n - 0 spawn user=policyd-spf argv=/usr/bin/policyd-spf
And its working again with the appended 0.and slighty different argv – another two instances to change in the zoo. Needs some tinkering and reading of the document in /usr/share/doc/postfix-policyd-spf-python/README.debain
Cyrus imap also had a problem with /usr/sbin missing binaries which the cyrus.conf picks up they do exist and have since moved to /usr/lib/cyrus/bin. It did not affect mail delivery but your see what i mean if you run it.
Mod_defensible in apache 2.4 does work but not from the repo’s, download it from the debian site and the files show up – dont ask me why. but it works remember the config goes in apache2.conf
One thing i dont have much clue on in is postgressql upgrading (9.1 to 9.4) i have both so i will ignore that one for the time being