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.\" generated by cd2nroff 0.1 from CURLOPT_MAIL_RCPT_ALLOWFAILS.md
.TH CURLOPT_MAIL_RCPT_ALLOWFAILS 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_MAIL_RCPT_ALLOWFAILS \- allow RCPT TO command to fail for some recipients
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_RCPT_ALLOWFAILS,
long allow);
.fi
.SH DESCRIPTION
If \fIallow\fP is set to 1L, allow RCPT TO command to fail for some recipients.
When sending data to multiple recipients, by default curl aborts the SMTP
conversation if either one of the recipients causes the RCPT TO command to
return an error.
The default behavior can be changed by setting \fIallow\fP to 1L which makes
libcurl ignore errors for individual recipients and proceed with the remaining
accepted recipients.
If all recipients trigger RCPT TO failures and this flag is specified, curl
aborts the SMTP conversation and returns the error received from to the last
RCPT TO command.
.SH DEFAULT
0
.SH PROTOCOLS
This functionality affects smtp only
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
struct curl_slist *list;
CURLcode res;
/* Adding one valid and one invalid email address */
list = curl_slist_append(NULL, "person@example.com");
list = curl_slist_append(list, "invalidemailaddress");
curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
curl_easy_setopt(curl, CURLOPT_MAIL_RCPT_ALLOWFAILS, 1L);
res = curl_easy_perform(curl);
curl_slist_free_all(list);
curl_easy_cleanup(curl);
}
}
.fi
.SH HISTORY
This option was called CURLOPT_MAIL_RCPT_ALLLOWFAILS (with three instead of
two letter L) before 8.2.0
.SH AVAILABILITY
Added in curl 8.2.0
.SH RETURN VALUE
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLOPT_MAIL_FROM (3),
.BR CURLOPT_MAIL_RCPT (3)