diff options
| -rw-r--r-- | lib/smtp.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/smtp.c b/lib/smtp.c index 977d323a7..bb29a83cf 100644 --- a/lib/smtp.c +++ b/lib/smtp.c @@ -791,7 +791,11 @@ static CURLcode smtp_mail(struct connectdata *conn) struct SessionHandle *data = conn->data; /* send MAIL FROM */ - if(data->set.str[STRING_MAIL_FROM][0] == '<') + if(!data->set.str[STRING_MAIL_FROM]) + /* null reverse-path, RFC-2821, sect. 3.7 */ + result = Curl_pp_sendf(&conn->proto.smtpc.pp, "MAIL FROM:<>"); + + else if(data->set.str[STRING_MAIL_FROM][0] == '<') result = Curl_pp_sendf(&conn->proto.smtpc.pp, "MAIL FROM:%s", data->set.str[STRING_MAIL_FROM]); else |