[Mimedefang] Re: Spammers who won't take no for an answer

[Kenneth Porter]

--On Friday, October 24, 2003 9:54 AM -0700 Jeremy Mates <jmates at sial.org> 
wrote:

> OpenBSD's spamd is very efficient (spends most of time sleeping), and
> usually ties connections up for five minutes; the message is temp or
> perm failed before the DATA verb, which reduces the bandwidth costs.

Does this also fiddle with the TCP window the way La Brea did? So that the 
actual data trickles slowly in, tying up the stack at the far end?