CURLOPT_SASL_AUTHZID(3) Library Functions Manual CURLOPT_SASL_AUTHZID(3)
NAME
CURLOPT_SASL_AUTHZID - authorization identity (identity to act as)
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SASL_AUTHZID, char *authzid);
DESCRIPTION
Pass a char pointer as parameter, which should be pointing to the
null-terminated authorization identity (authzid) for the transfer. Only
applicable to the PLAIN SASL authentication mechanism where it is op-
tional.
When not specified only the authentication identity (authcid) as speci-
fied by the username is sent to the server, along with the password. The
server derives a authzid from the authcid when not provided, which it
then uses internally.
When the authzid is specified, the use of which is server dependent, it
can be used to access another user's inbox, that the user has been
granted access to, or a shared mailbox for example.
The application does not have to keep the string around after setting
this option.
Using this option multiple times makes the last set string override the
previous ones. Set it to NULL to disable its use again.
DEFAULT
blank
PROTOCOLS
This functionality affects imap only
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "imap://example.com/");
curl_easy_setopt(curl, CURLOPT_USERNAME, "Kurt");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "xipj3plmq");
curl_easy_setopt(curl, CURLOPT_SASL_AUTHZID, "Ursel");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 7.66.0
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLOPT_PASSWORD(3), CURLOPT_USERNAME(3), CURLOPT_USERPWD(3)
libcurl 2026-07-12 CURLOPT_SASL_AUTHZID(3)
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