# plain_server:
#   driver = plaintext
#   public_name = PLAIN
#   server_condition = "${if crypteq{$3}{${extract{1}{:}{${lookup{$2}lsearch{CON$
#   server_set_id = $2
#   server_prompts = :
#   .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
#   server_advertise_condition = ${if eq{$tls_cipher}{}{}{*}}
#   .endif