local st = require "util.stanza";
local t_concat = table.concat;
-local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
+local secure_auth_only = module:get_option("c2s_require_encryption")
+ or module:get_option("require_encryption")
+ or not(module:get_option("allow_unencrypted_plain_auth"));
local sessionmanager = require "core.sessionmanager";
local usermanager = require "core.usermanager";