There are several Tarsnap-related mailing lists managed using Daniel Bernstein's ezmlm mailing list manager:

• [email protected]: Important announcements. [subscribe] [unsubscribe] [archives]
  • Announcements of new versions of Tarsnap client code.
  • Announcements of changes to the Tarsnap service.
  • This is a low volume moderated list, not a discussion list.
• [email protected]: Discussion about using Tarsnap. [subscribe] [unsubscribe] [archives]
  • Discussion about using Tarsnap in obscure environments.
  • Discussion about using shell scripts to make Tarsnap do interesting things.
  • Discussion about how to do XYZ using Tarsnap.
• [email protected]: Early access to pre-release versions of Tarsnap. [subscribe] [unsubscribe] [archives]
  • Upcoming versions of the Tarsnap client code will be posted here so that adventurous users can test them and point out any problems before they are officially released.
• [email protected]: Discussion of the scrypt key derivation function. [subscribe] [unsubscribe] [archives]
  • Porting scrypt to obscure platforms.
  • Applications (other than Tarsnap) which use scrypt.
  • Cryptographic results concerning key derivation.
• [email protected]: Discussion of the kivaloo data store. [subscribe] [unsubscribe] [archives]
• [email protected]: Discussion of the spiped secure pipe daemon. [subscribe] [unsubscribe] [archives]