MailDrop - maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.

Erine.email - Create unlimited disposable email adresses on the go and forward them to your main email adress...

Spamgourmet - spamgourmet provides email addresses that get created automatically the first time they are used, forward messages, and then automatically expire.

Faruno - A unique email address within one inbox

Guerrilla Mail - Guerrilla Mail is a web-based app that provides a disposable and anonymous email address. Users of the service are not required to set up an account in order to send or receive emails.

10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.