I'm unable to send an email to "a. ... at surfacetreatment dot be", getting
"domain not found".
it seems to me they're misconfigured and, don't have MX set correctly?
or am i misinterpreting this, mxtoolbox find MX ?
fwiw, web surfacetreatment.be redirects to surfacetreatment.nl
thanks for help, explanation and any pointers
Mar 1 08:58:53 emu postfix/smtpd: NOQUEUE: reject: RCPT from
localhost[127.0.0.1]: 450 4.1.2 <a. ... at surfacetreatment dot be>: Recipient
address rejected: Domain not found; from=< ... at sbt dot net.au>
to=<a. ... at surfacetreatment dot be> proto=ESMTP helo=<sbt.net.au>
# dig -t MX su