[toaster] Sending is so slow

[Eric Noel]

Any tips on how to speed up sending, sending right now usually takes at 
least 10 seconds, we didnt put any reverse lookup checking on the 
qmail-smtpd/run. the only thing i guess its slowing it down is clamav 
and rblsmtpd list. but if we remove them we will have a barrage of 
spammers/viruses and then increases our queue to upto 5000 in an hour?? :(