Wietse Venema:
>
> Show actual evidence: two complete logfile records that are too close
> together.
And also, show evidence that you haven't made the mistake of setting
xxx_destination_recipient_limit=1 (where xxx is the mail delivery
transport that talks to google etc.).
As documented:
o With a corresponding per-destination recipient limit equal to 1,
the rate delay specifies the time between deliveries to the same
recipient. Different recipients are delivered in parallel, sub-
ject to the process limits specified in master.cf.
Wietse