Zitat von Marko Weber <we...@zackbummfertig.de>:
hello,
i plan a postfix server as mx-backup.
how can i control on this mx-backup, that people dont use this
server as "main" mx?
is there a way to do this?
Not sure what you mean by "using as main", the only difference is the
priority listed in DNS after all and clients are free to obey it or
not. If you speak of SMTP submission service as "main mx" service you
should restrict it to port 587 and it has nothing to do with MX records.
thanks from cloudy hamburg
Regards from sunny Freiburg ;-)
Andreas
