Navigate the menu on the left to select the mail client (mail user agent) you wish to use with hashcash. If it is not listed and you are using unix you may be able to get the generic one to work. Otherwise subscribe or post a question to the hashcash mailing list to see if anyone can help you.

voting for mozilla etc support

MUAs with * beside them do not yet support hashcash, but have feature request bugs tracking the interest in seeing such support. Please follow the links to vote and add comments expressing your interest. If the developers see lots of interest they are more likely to implement over other feature requests.

If you create a tracking bug for your favorite mailer and it is not listed here send me Adam Back <adam@cypherspace.org> the URL and I will add it.