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

[2] [CITE@en[rfc3965]], [TIME[2021-07-27T07:44:39.000Z]] <https://datatracker.ietf.org/doc/html/rfc3965>

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