util.sasl.digest-md5: Remove, obsolete since 2011 RFC 6331 lists several problems with this outdated authentication mechanism. The code here was also completely ignored by lint checks and has probably not been used for a long time, as it is incompatible with SCRAM-hashed password storage.

module:log("error", "mod_pep_plus has been renamed to mod_pep, please update your config file. Auto-loading mod_pep...");
module:depends("pep");