Note: Whilst IMAP supports this option there is no need to explicitly set it,
as libcurl can determine the feature itself when the server supports the
SASL-IR CAPABILITY.
+.IP CURLOPT_BEARER
+Pass a char * as parameter, which should point to the zero terminated OAUTH
+2.0 Bearer Access Token for use with IMAP and SMTP servers that support the
+OAUTH 2.0 Authorization Framework. (Added in 7.33.0)
+
+Note: The user name used to generate the Bearer Token should be supplied via
+the \fICURLOPT_USERNAME\fP option.
.SH HTTP OPTIONS
.IP CURLOPT_AUTOREFERER
Pass a parameter set to 1 to enable this. When enabled, libcurl will