MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Email Temporanee - Email Temporanee - Free Temp Email
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Mailinator - Any Inbox. Any Time.