Hi Daniel,
as far as I've seen from the manual, the syntax is "relay [backup
[mx]]" and the description says: "Accepted mails are only relayed
through servers with a lower preference value in the MX record for the
domain than the one specified in mx. If mx is not specified, the
default server name
LÉVAI Dániel @ 2015-10-31T10:24:35 +0100:
> Hi!
>
> I'm trying to setup a simple backup mx on OpenBSD 5.8-stable, but so far
> it seems more of a burden than a "simple" task :)
>
> smtpd.conf:
> 8<
> pki hostname certificate "/etc/ssl/smtpd_cert.pem