kel
Ostrich
Another benefit of running your own email server - or, rather, just having your own domain even if you let someone else run it, irrespective of the privacy issues above - is you have infinity email addresses now to receive and send email. Mailinator can do the first, but not the second, and some sites block mailinator and alt domains. If you have your own domain - you can buy the cheapest one - you can put any email address in when signing up for something and just completely block the address when you're done with it or start getting spam on it.