Daniel L'Hommedieu:
> Here's what I did when I had a similar issue with sendmail: I
> reconfigured sendmail such that all mailers are considered expensive.
> In sendmail, what this does is: new messages are only queued, and
> messages are sent only during a queue run.
...
> I don't know if postfix has a similar feature, but if it does,
> that's what I'd implement.
This is how Postfix works by design. Mail is always queued, and
the central scheduler controls connection concurrencies by destination
name.
Wietse