I suspect you’re asking for advice on how to mailbomb someone, but I’ll answer anyway. What you need to do is create a fresh bait email account with a service which does very little or no filtering. Email providers like Hotmail and Yahoo! filter their email, so you’re better off going with a smaller, more obscure free email provider, preferably somewhere in China or Russia. Then, using this email address, make a few postings to Usenet alt.sex.* hierarchy newsgroups through Google Groups. Sign up for a few “free” pr0n sites with your email address, and ask for more information from some penis-enlargement, mortgage rate, and “herbal Viagra” sites. When the spam starts rolling into your mailbox, reply to all the “remove me” addresses provided, using the email address you want to get avalanched with email.
Voila. One never-ending mailbomb ready to go. Of course, this is simply for your own use, and you’re not going to use it someone else. Right?