77 lines
1.8 KiB
Markdown
77 lines
1.8 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_MAIL_AUTH
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MAIL_FROM (3)
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- CURLOPT_MAIL_RCPT (3)
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---
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# NAME
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CURLOPT_MAIL_AUTH - SMTP authentication address
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_AUTH, char *auth);
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~~~
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# DESCRIPTION
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Pass a pointer to a null-terminated string as parameter. This is used to
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specify the authentication address (identity) of a submitted message that is
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being relayed to another server.
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This optional parameter allows co-operating agents in a trusted environment to
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communicate the authentication of individual messages and should only be used
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by the application program, using libcurl, if the application is itself a mail
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server acting in such an environment. If the application is operating as such
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and the AUTH address is not known or is invalid, then an empty string should
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be used for this parameter.
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Unlike CURLOPT_MAIL_FROM(3) and CURLOPT_MAIL_RCPT(3), the address
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should not be specified within a pair of angled brackets (<>). However, if an
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empty string is used then a pair of brackets are sent by libcurl as required
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by RFC 2554.
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The application does not have to keep the string around after setting this
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option.
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# DEFAULT
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NULL
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# PROTOCOLS
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SMTP
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
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curl_easy_setopt(curl, CURLOPT_MAIL_AUTH, "<secret@cave>");
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.25.0
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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