[1] RFC 2532 - Extended Facsimile Using Internet Mail, 2021-03-28T07:55:24.000Z, 2021-04-06T08:24:47.028Z https://tools.ietf.org/html/rfc2532

[2] rfc3965, 2021-07-27T07:44:39.000Z https://datatracker.ietf.org/doc/html/rfc3965

[3] RFC Errata Report » RFC Editor, 2021-07-27T07:45:05.000Z https://www.rfc-editor.org/errata_search.php?rfc=3965&rec_status=0