From 379ed84da218ace36a4a443fdac6f89e987bcfe0 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@rspamd.com>
Date: Fri, 26 Aug 2022 22:30:18 +0100
Subject: [PATCH] [Fix] Skip cname records when processing SPF records

---
 src/libserver/spf.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/libserver/spf.c b/src/libserver/spf.c
index 8f7a596d9..eb7477129 100644
--- a/src/libserver/spf.c
+++ b/src/libserver/spf.c
@@ -882,6 +882,11 @@ spf_record_dns_callback (struct rdns_reply *reply, gpointer arg)
 				rec->ttl = elt_data->ttl;
 			}
 
+			if (elt_data->type == RDNS_REQUEST_CNAME) {
+				/* Skip cname aliases - it must be handled by a recursor */
+				continue;
+			}
+
 			switch (cb->cur_action) {
 				case SPF_RESOLVE_MX:
 					if (elt_data->type == RDNS_REQUEST_MX) {
@@ -984,6 +989,10 @@ spf_record_dns_callback (struct rdns_reply *reply, gpointer arg)
 									req_name->name,
 									selected->content.txt.data);
 						}
+						else {
+							msg_debug_spf ("no include record for %s",
+									req_name->name);
+						}
 					}
 					goto end;
 
-- 
2.39.5