> On Aug 31, 2018, at 1:20 AM, Viktor Dukhovni <postfix-us...@dukhovni.org>
> wrote:
>
>
> https://github.com/vdukhovni/postfix/blob/master/postfix/RELEASE_NOTES-2.7#L55
Sorry, wrong line number:
https://github.com/vdukhovni/postfix/blob/master/postfix/RELEASE_NOTES-2.7#L100
> [Incompat 20100117] The meaning of an empty filter next-hop destination
> has changed (for example, "content_filter = foo:" or "FILTER foo:").
> Postfix now uses the recipient domain, instead of using $myhostname
> as in Postfix 2.6 and earlier. To restore the old behavior specify
> "default_filter_nexthop = $myhostname", or specify a non-empty
> next-hop content filter destination.
--
Viktor.