| NONE | None |
| LOGIN | https://tools.ietf.org/id/draft-murchison-sasl-login-00.txt |
| OAUTH2 | https://tools.ietf.org/html/rfc7628 |
| NTLM | http://davenport.sourceforge.net/ntlm.html
https://tools.ietf.org/doc/tcllib/html/sasl.html |
| PLAIN | https://tools.ietf.org/html/rfc4422 |
| GSSAPI | GSS-API
https://tools.ietf.org/html/rfc2078
https://tools.ietf.org/html/rfc2222
Kerberos V5
https://tools.ietf.org/html/rfc4752 |
| CRAM_MD5 | https://tools.ietf.org/html/rfc2195 |
| EXTERNAL | https://tools.ietf.org/html/rfc2222 |
| KERBEROS_V4 | https://tools.ietf.org/html/rfc2222 |
| ANONYMOUS | https://tools.ietf.org/html/rfc4505 |
| DIGEST_MD5 | https://tools.ietf.org/html/rfc2831 |
| GSSSPNEGO | GSS-SPNEGO
https://tools.ietf.org/html/rfc5801#section-14
https://tools.ietf.org/html/rfc4178 |
| OTP_MD4 | https://tools.ietf.org/html/rfc2444 |
| OTP_MD5 | https://tools.ietf.org/html/rfc2444 |
| OTP_SHA1 | https://tools.ietf.org/html/rfc2444 |
| SKEY | https://tools.ietf.org/html/rfc1760
https://tools.ietf.org/html/rfc2222#section-7.3 |
| PASS_DSS_SHA_3_DES_1 | https://tools.ietf.org/html/draft-newman-sasl-passdss-00 |
| SCRAM_SHA1 | https://tools.ietf.org/html/rfc5802 |
| SCRAM_SHA_1_PLUS | https://tools.ietf.org/html/rfc5802 |
| SCRAM_SHA224 | |
| SCRAM_SHA_224_PLUS | |
| SCRAM_SHA256 | https://tools.ietf.org/html/rfc7677 |
| SCRAM_SHA_256_PLUS | https://tools.ietf.org/html/rfc7677 |
| SCRAM_SHA384 | |
| SCRAM_SHA_384_PLUS | |
| SCRAM_SHA512 | https://tools.ietf.org/html/draft-melnikov-scram-sha-512-01 |
| SCRAM_SHA_512_PLUS | https://tools.ietf.org/html/draft-melnikov-scram-sha-512-01 |
| IMAP_LOGIN | https://tools.ietf.org/html/rfc3501#section-6.2.3 |