topic used to be lookupd high cpu usage.
yes lookupd is still very high.

i have turned off all RBL lists in main.cf
Turned off all header body and Regex checks

a message with 17 addresses takes 47 mins to be accepted. in other words i click send,… 47 seconds later it goes out.

An address with 169 addresses takes up to an hour.
Sendmail and qpopper used to handle this very well.

I have increased these;
default_destination_recipient_limit = 200
default_extra_recipient_limit = 2000

at this point i do not believe postfix is the problem. but I’m not sure.
any help on this would be helpful.

dp 1.2ghz xserve 2Gram
1700 + users in /netinfo/root
passwords are either plain text or open directory