OP:
> In practice this does not have to be 50 segmented emails for a
> mail with 50 envelopes. If most recipients share the receiving
> preferences, all these recipients can be accepted it the same SMTP
> transaction.
I have nothing to add to my objection against suspending Postfix
resource limits based on a receiver's RCPT TO response. It is safe
only for deliveries between trusted systems which is an extremely
rare use case. Postfix developer effort is better spent on things
that have benefit most users.
Wietse
