diff options
| -rw-r--r-- | program/include/main.inc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/program/include/main.inc b/program/include/main.inc index 535fde18b..004212ff8 100644 --- a/program/include/main.inc +++ b/program/include/main.inc @@ -1588,8 +1588,15 @@ function check_email($email, $dns_check=true) if (!$dns_check || !rcmail::get_instance()->config->get('email_dns_check')) return true; - if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' && version_compare(PHP_VERSION, '5.3.0', '<')) - return true; + if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' && version_compare(PHP_VERSION, '5.3.0', '<')) { + $lookup = array(); + @exec("nslookup -type=MX " . escapeshellarg($domain_part) . " 2>&1", $lookup); + foreach ($lookup as $line) { + if (strpos($line, 'MX preference')) + return true; + } + return false; + } // find MX record(s) if (getmxrr($domain_part, $mx_records)) |