DNMX
http://hxuzjtocnzvv5g2rtg2bhwkcbupmk7rclb6lly3fo4tvqkk5oyrv3nid.onion/

DNMX or Dark Net Mail Exchange is a free to use email service that works just like Gmail or yMail. We don't care who you are and will never ask for your information or reveal your identity; this is the dark net after all :)
Why should I trust you?

Don't! Don't trust any service on the dark net! We strongly recommend you use PGP encryption for sending sensitive information. We encrypt our servers and make the best effort to secure our site, but you should never trust us.
Do you have iMap or PoP3 support?

No. This would make it easy for users to send spam, so this is not available with our service.