Status for this module is experemental. There is no publically available software to support CRAM authentication via RADIUS yet. CRAM mail authentication (APOP, CRAM-MD5) Attributes used (Vendor Code/PEN: 11406, you may change it to your own) 101 (Sandy-Mail-Authtype), selects CRAM protocol, possible values: 2: CRAM-MD5 3: APOP 8: CRAM-MD4 9: CRAM-SHA1 102 (Sandy-Mail-Challenge), contains server's challenge (usually text banner) 103 (Sandy-Mail-Response), contains client's response, 16 octets for APOP/CRAM-MD5/CRAM-MD4, 20 octets for CRAM-SHA1 See dictionary.sandy and Standard.draft for attribute descriptions.