Joe M:
> Hello,
>
> The post-install script always fails when the /etc/postfix (config
> directory) is read-only.
I'll have to try that. Misleading error messages are
undesirable.
> Any thoughts, please?
>
> I am also attaching my local working version of post-install.
Looks like you're preventing it from updating main.cf.
This was fixed days ago with postfix-3.1-20150329.
Can you try the post-install file from that distribution?
It should work with postfix-3.0.0.
If it does not fix your problem then please speak up.
Wietse