Packages with the smime use flag

dev-libs / gmime : Utilities for creating and parsing messages using MIME

  • Enable experimental S/MIME support

mail-client / alpine : An easy to use text-based based mail and news client

  • Enable support for S/MIME

mail-client / claws-mail : An email client (and news reader) based on GTK+

  • Build plugin for S/MIME support