My advice would be to keep the configuration directory as /etc/postfix, but relocate all the binaries. That way the system provided /usr/sbin/sendmail will still work, despite being an older version of Postfix.
> On Dec 27, 2018, at 6:29 PM, Benny Pedersen <m...@junc.eu> wrote:
>
> uninstall postfix, recompile tarball with prefix /usr/local and remember do
> not afterwards do a apple install of postfix, recompile new tarballs with
> local prefix
--
Viktor.
