Tobias Gro?:
> Besides the lack of randomization in the mail client, there is
> another question: Should the mail client implement support for
> multiple MX or implicit MX (A when no MX is given) records when
> sending all traffic to smarthosts which are loadbalanced by DNS
> regarding to the rfc 5321?
If a Postfix destination domain (relayhost, smtp_fallback_relay,
or transport_maps) is specified inside [] then Postfix makes no MX
lookup for that name. Otherwise, Postfix uses the same procedure
to choose the IP address, to limit the number of IP addresses, and
to limit the number of SMTP sessions as described before.
Wietser
