---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_MAIL_RCPT
Section: 3
Source: libcurl
See-also:
  - CURLOPT_MAIL_AUTH (3)
  - CURLOPT_MAIL_FROM (3)
Protocol:
  - SMTP
---

# NAME

CURLOPT_MAIL_RCPT - list of SMTP mail recipients

# SYNOPSIS

~~~c
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_RCPT,
                          struct curl_slist *rcpts);
~~~

# DESCRIPTION

Pass a pointer to a linked list of recipients to pass to the server in your
SMTP mail request. The linked list should be a fully valid list of
**struct curl_slist** structs properly filled in. Use curl_slist_append(3) to
create the list and curl_slist_free_all(3) to clean up an entire list.

When performing a mail transfer, each recipient should be specified within a
pair of angled brackets (\<\>), however, should you not use an angled bracket
as the first character libcurl assumes you provided a single email address and
encloses that address within brackets for you.

When performing an address verification (**VRFY** command), each recipient
should be specified as the username or username plus domain (as per Section
3.5 of RFC 5321).

When performing a mailing list expand (**EXPN** command), each recipient
should be specified using the mailing list name, such as `Friends` or
`London-Office`.

# DEFAULT

NULL

# EXAMPLE

~~~c
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    struct curl_slist *list;
    list = curl_slist_append(NULL, "root@localhost");
    list = curl_slist_append(list, "person@example.com");
    curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
    curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, list);
    res = curl_easy_perform(curl);
    curl_slist_free_all(list);
    curl_easy_cleanup(curl);
  }
}
~~~

# AVAILABILITY

Added in 7.20.0. The **VRFY** and **EXPN** logic was added in 7.34.0

# RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.