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CURLOPT_MAIL_AUTH(3)

CURLOPT_MAIL_AUTH(3)       curl_easy_setopt options       CURLOPT_MAIL_AUTH(3)



NAME
       CURLOPT_MAIL_AUTH - SMTP authentication address

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_AUTH, char *auth);

DESCRIPTION
       Pass  a  pointer to a null-terminated string as parameter. This will be
       used to specify the authentication address (identity)  of  a  submitted
       message that is being relayed to another server.

       This  optional  parameter allows co-operating agents in a trusted envi‐
       ronment to communicate the authentication of  individual  messages  and
       should  only  be used by the application program, using libcurl, if the
       application is itself a mail server acting in such an  environment.  If
       the  application is operating as such and the AUTH address is not known
       or is invalid, then an empty string should be used for this parameter.

       Unlike  CURLOPT_MAIL_FROM(3)  and  CURLOPT_MAIL_RCPT(3),  the   address
       should not be specified within a pair of angled brackets (<>). However,
       if an empty string is used then a pair of  brackets  will  be  sent  by
       libcurl as required by RFC2554.

       The  application  does not have to keep the string around after setting
       this option.

DEFAULT
       NULL

PROTOCOLS
       SMTP

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
         curl_easy_setopt(curl, CURLOPT_MAIL_AUTH, "<secret@cave>");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.25.0

RETURN VALUE
       Returns CURLE_OK if the option is  supported,  CURLE_UNKNOWN_OPTION  if
       not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_MAIL_FROM(3), CURLOPT_MAIL_RCPT(3),



libcurl 7.86.0                   May 17, 2022             CURLOPT_MAIL_AUTH(3)
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