Last update: March 17, 2019. This website uses cookies. By using our website, you acknowledge that you have read, understood and agreed to our Privacy Policy, Cookie Policy, Terms of Service, and E-Sign Consent. More information

 Actions

Remailers: Send Emails without Registration

Remailer[edit]

Introduction[edit]

Quoted from the Wikipedia Anonymous remailer article[1]: "An anonymous remailer is a server that receives messages with embedded instructions on where to send them next, and that forwards them without revealing where they originally came from."

In Whonix-Workstation ™, remailers can be used over Tor. Not with the goal to offer even more anonymity for (web) e-mails than Tor could provide, just as a cheap tool to send mails without registration.

In theory, remailers or to be more concrete, high latency networks are more secure than low latency networks like Tor. If you are interested in this, please see Dev/Anonymity Network. The anonymity provided by the remailer would add up to the anonymity provided by Tor. Given the facts, there's almost no activity (press, blog posts, forum, mailing list discussion, development ceased) so it is easy to assume that remailers have very few remaining servers and users.

In practice, it is safer to assume that so few people are using remailers, that they provide no additional anonymity. Adrelanos would enjoy seeing high latency networks reborn, unfortunately there is absolutely no implication that this is going to happen.

For this reason, for faster delivery and better reliability it makes sense to use only one remailer and not a chain of them. Of course, if you believe remailer chains will make you even more anonymous you are free to use any path length. By the way, if you want to use a remailer for anonymity, you shouldn't test the remailer by sending a remailed mail to yourself.

Depending on what you want to do, it is recommended to encrypt the content of your mail. [2] TODO: what about the subject? Empty? ""? "-"? Random?

You can install and use remailer software directly inside Whonix-Workstation ™ over Tor, which is the better way. Another method is using a Third Party Webinterface (at the bottom of this page), which is less secure, because the owner of the website could monitor how you type, metadata (send when, to whom) and cleartext (unencrypted content) communication.

A small test with Mixmaster using only one remailer revealed that it takes between 10 and 120 minutes until the mail arrives in the recipients inbox.

Mixmaster[edit]

Fully documented on its own Mixmaster page.

Third Party Webinterface in Tor Browser[edit]

Note that everything said in introduction applies and additionally the server administrator can read plaintext as you type or paste. Use with care, perhaps for lower security needs.

Mixmaster[edit]

Unknown[edit]

Cypherpunk remailer[edit]

This may be wrong, feel encouraged to check if the following is correct.

Although there is a big Cypherpunk remailer wikipedia article[3] and list of Cypherpunk remailer servers[4], cypherpunks.to/remailers[5] says it is using Mixmaster and the helpfile[6] explains, that it is safer to use Mixmaster and that Cypherpunk remailer is just an e-mail based interface. Since the full list of typ I and typ II remailer servers[7] reveals, that most type I (Cypherpunk) are also type II (Mixmaster) servers, I don't see much point into learning and documenting how Cypherpunk remailer works. It doesn't look like an alternative, i.e. doesn't look like Cypherpunk remailer could be used if Mixmaster doesn't work for some reason. It would also defeat the point of this page: sending mails without registration, because you would still require a mail provider.

Footnotes / References[edit]


No user support in comments. See Support.

Comments will be deleted after some time. Specifically after comments have been addressed in form of wiki enhancements. See Wiki Comments Policy.


Add your comment
Whonix welcomes all comments. If you do not want to be anonymous, register or log in. It is free.


Random News:

Want to help create awesome, up-to-date screenshots for the Whonix wiki? Help is most welcome!


https | (forcing) onion

Share: Twitter | Facebook

This is a wiki. Want to improve this page? Help is welcome and volunteer contributions are happily considered! Read, understand and agree to Conditions for Contributions to Whonix ™, then Edit! Edits are held for moderation.

Copyright (C) 2012 - 2019 ENCRYPTED SUPPORT LP. Whonix ™ is a trademark. Whonix ™ is a licensee of the Open Invention Network. Unless otherwise noted, the content of this page is copyrighted and licensed under the same Freedom Software license as Whonix ™ itself. (Why?)

Whonix ™ is a derivative of and not affiliated with Debian. Debian is a registered trademark owned by Software in the Public Interest, Inc.

Whonix ™ is produced independently from the Tor® anonymity software and carries no guarantee from The Tor Project about quality, suitability or anything else.

By using our website, you acknowledge that you have read, understood and agreed to our Privacy Policy, Cookie Policy, Terms of Service, and E-Sign Consent. Whonix ™ is provided by ENCRYPTED SUPPORT LP. See Imprint.