Just curious...I am using php to send mail...it goes to gmail/yahoo and to email @random websites, but doesn't even make it to the spam folder of hotmail or @msn.com addresses. Any ideas how to fix this? could it be an ip ban issue? I have never 'spammed' but I have send off a few hundred emails at once from my ip, so maybe msn blacklisted it?
few hundreds emails at once from your ip = a big chance msn delays your messages some ways, if not blocking. You will need to check in mail log to see more details