ram:
> Our clients set up their mail forwarding to blackberry servers
> The blackberry server is doing a ratelimit and mails get held up on our
> servers
>
> I can easily configure multiple IP addresses on the machine. Can I
> configure postfix to send using different bind addresses
>
> I know I can change the smtp_bind_address parameter through a script but
> that seems stupid having to restart postfix everytime
>
> Also we can never evenly spread out the mails thru different IPS
There is an example in QSHAPE_README that implements delays with
a non-responding destination plus smtp_fallback_relay. This might
do the job for Postfix < 2.5.
Postfix 2.5 has outbound rate limits per destination.
http://www.postfix.org/postconf.5.html#default_destination_rate_delay
You would use something like
/etc/postfix/main.cf:
smtp_destination_rate_delay=60
Or some other delay. This delay is enforced by the queue manager.
Wietse