Workaround for: multiple destination domains are not supported?

Hi,

Is there any way in Postfix for it to handle Google's delivery problem?

I have been struggling for some years with Sendmail, and the problem that Google does not support multiple destination domains.   When the MTA looks up the MX record for:
[email protected]
[email protected]
[email protected]
And finds they MX to Google, it logically puts them in a single transaction.
And then Google for NO LOGICAL REASON tempfails all the recipients except the first domain.  With a long recipient list of which many resolve to Google, this can result in a lot of re-queue and wasteful delay.

If Postfix has some workaround for this I will happy switch off Sendmail.

Help!