Spamming Hotmail

I have been modifying a chunk of canned PHP that has questionable past. Previous versions were manipulated by spammers so security conscious people are, for good reason, a little leery of it.

Gmail, Yahoo and AOL marked my initial test mails as spam. Oddly enough, Hotmail did not.

Just to be clear, I am not a spammer and current versions of this scripting are not compromised in any way — well, hopefully not.