curl/docs/libcurl/opts/CURLOPT_MAIL_FROM.md
Daniel Stenberg 5a488251f7
curldown: fixups
- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
  where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
  guessing where to put it

- make the protocols section more verbose

Closes #14227
2024-07-19 17:03:25 +02:00

68 lines
1.4 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_MAIL_FROM
Section: 3
Source: libcurl
See-also:
- CURLOPT_MAIL_AUTH (3)
- CURLOPT_MAIL_RCPT (3)
Protocol:
- SMTP
Added-in: 7.20.0
---
# NAME
CURLOPT_MAIL_FROM - SMTP sender address
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_FROM, char *from);
~~~
# DESCRIPTION
Pass a pointer to a null-terminated string as parameter. This should be used
to specify the sender's email address when sending SMTP mail with libcurl.
An originator email address should be specified with angled brackets (\<\>)
around it, which if not specified are added automatically.
If this parameter is not specified then an empty address is sent to the SMTP
server which might cause the email to be rejected.
The application does not have to keep the string around after setting this
option.
# DEFAULT
blank
# %PROTOCOLS%
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
curl_easy_setopt(curl, CURLOPT_MAIL_FROM, "president@example.com");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
~~~
# %AVAILABILITY%
# 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.