Hi,

I recently replaced an older Linux Postfix server with a new OpenBSD
(6.6) and OpenSMTPD 6.6.0.

Most things are working fine, but email sent to my secondary MX server
never get accepted by my OpenSMTPD server -- they always get a 421 error
that looks like this:

        smtp failed-command command="DATA" result="421 try again later"

The secondary MX server is running OpenBSD/postfix and reports message
statuses like this:

        (host foo.bar.com[192.168.2.2] said: 421 try again later (in reply to 
end of DATA command))

Does anyone have some suggestions on what I should be looking for/at to
diagnose/fix this problem?

Thanks,
        Jeff

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