Abhijeet Rastogi:
> Hi Wietse,
>
> This helps. Half reading is always bad. This clears everything about my
> doubt.
>
> One other thing still remains. I've multiple smtp services defined like
> this. (in master.cf, to use different IPs, selected randomly)
>
> ob-smtp1 unix - - n - - smtp
> -o smtp_bind_address=1.2.3.4
> -o syslog_name=postfix-smtp1
> ob-smtp2 unix - - n - - smtp
> -o smtp_bind_address=5.6.7.8
> -o syslog_name=postfix-smtp2
>
> I suppose that if a message delivered via one of the transport and
> deferred, it'll always be tried via the same "smtp service". Is there a
> possibility where I can change the smtp service while retrying for a
> already deferred mail?
You can specify an alternate MTA (with smtp_fallback_relay) for
delayed mail. There is no feature to specify an alternate delivery
agent for delayed mail.
The example looks like an attempt to circumvent Yahoo etc. rate
limits per client IP address. I don't have to make that "easy"
with Postfix.
Wietse
