On Mon, Mar 28, 2016 at 8:22 PM, Viktor Dukhovni <postfix-us...@dukhovni.org> wrote:
> Any change in your configuration is not the result of upstream > changes in Postfix. The "relay_domains" element is still there > even in 3.2 snapshots. OK, let's assume that the change was caused by a vendor patch to 2.9 that they undid with 2.10. What, then, should the expected behavior be with respect to how Postfix matches dot-prefixed subdomains for the purpose of matching? According to my reading of the documentation, if $relay_domains includes ".example.com", it should relay mail for "sub.example.com", regardless of whether or not "relay_domains" is included in $parent_domain_matches_subdomains. My understanding is that inclusion of (for example) "relay_domains" in $parent_domain_matches_subdomains would treat "example.com" as ".example.com" for matching purposes, but would otherwise be a no-op if the subdomain is already dot-prefixed. Best regards, --Michael
