I just tried to send-pr a bugreport for building subversion-base
on NetBSD 3.0-STABLE (my MTA is sendmail-8.13.x)

My mail logs show :

Jun  5 15:12:43 rollcage2 sendmail[96]: k555CbPV023797: 
to=<gnats-bugs@gnats.NetBSD.org>, 
ctladdr=<carl@rollcage2.bl.echidna.id.au> (134/100
), delay=00:00:06, xdelay=00:00:03, mailer=esmtp, pri=32340, 
relay=mail.netbsd.org. [204.152.190.11], dsn=4.2.0, stat=Deferred: 450 
<gnats-b
ugs@gnats.NetBSD.org>: Recipient address rejected: Greylisting in 
action, please try later


I don't get it?  Something broken at my end or on gnats?  I
just want to send a bugreport and a workaround ...