diff --git a/htdocs/admin/mails.php b/htdocs/admin/mails.php
index acfafcf9370..90036b752b0 100644
--- a/htdocs/admin/mails.php
+++ b/htdocs/admin/mails.php
@@ -850,13 +850,13 @@ if ($action == 'edit') {
 		}
 		$companyemail = getDolGlobalString('MAIN_INFO_SOCIETE_MAIL');
 		$dnsinfo = false;
-		if (!empty($companyemail)) {
+		if (!empty($companyemail) && function_exists('dns_get_record')) {
 			$domain = array_pop(explode('@', $companyemail));
 			$dnsinfo = dns_get_record($domain, DNS_TXT);
 		}
 		if (!empty($dnsinfo) && is_array($dnsinfo)) {
 			foreach ($dnsinfo as $info) {
-				if (strpos($info['txt'], 'v=spf1') !== false) {
+				if (strpos($info['txt'], 'v=spf') !== false) {
 					$text .= ($text ? '<br><br>' : '').$langs->trans("ActualMailSPFRecordFound", $info['txt']);
 				}
 			}