G?nther J. Niederwimmer:
> The second MX shout have also dovecot and all the Mails that is clear?
No. Secondary MXes forward email to primary MXes.
If you want something else, don't call it secondary MX. That
term already has common usage.
RFC 5321
A relay SMTP server is usually the target of a DNS MX record that
designates it, rather than the final delivery system. The relay
server may accept or reject the task of relaying the mail in the same
way it accepts or rejects mail for a local user. If it accepts the
task, it then becomes an SMTP client, establishes a transmission
channel to the next SMTP server specified in the DNS (according to
the rules in Section 5), and sends it the mail.
Wietse
