diff --git a/mail/opendmarc/Makefile b/mail/opendmarc/Makefile
index e7636444a181..078c9b8d52ef 100644
--- a/mail/opendmarc/Makefile
+++ b/mail/opendmarc/Makefile
@@ -1,64 +1,64 @@
 PORTNAME=	opendmarc
 PORTVERSION=	1.4.2
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	mail security
 MASTER_SITES=	GH
 
 MAINTAINER=	freebsd@gushi.org
 COMMENT=	DMARC library and milter implementation
 WWW=		http://www.trusteddomain.org/opendmarc.html
 
 LICENSE=	BSD3CLAUSE SENDMAIL
 LICENSE_COMB=	multi
 
 RUN_DEPENDS=	p5-Switch>=0:lang/p5-Switch \
 		p5-DBI>=0:databases/p5-DBI \
 		${DBD_MYSQL} \
 		p5-HTTP-Message>=0:www/p5-HTTP-Message
 
 USES=		cpe libtool mysql perl5 shebangfix autoreconf
 LICENSE_FILE_SENDMAIL=	${WRKSRC}/LICENSE.Sendmail
 LICENSE_GROUPS_SENDMAIL=	FSF OSI
 LICENSE_NAME_SENDMAIL=	Sendmail Open Source License
 LICENSE_PERMS_SENDMAIL=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
 CPE_VENDOR=	trusteddomain
 USE_LDCONFIG=	yes
 USE_RC_SUBR=	opendmarc
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	trusteddomainproject
 GH_TAGNAME=	rel-opendmarc-1-4-2
 GH_PROJECT=	OpenDMARC
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 
 OPTIONS_DEFINE=		SPF DOCS
 OPTIONS_DEFAULT=	SPF
 
 SPF_DESC=		Enable support for SPF record checking
 
 SPF_LIB_DEPENDS=	libspf2.so:mail/libspf2
 SPF_CONFIGURE_ON=	--with-spf \
 			--with-spf2-include=${LOCALBASE}/include/spf2 \
 			--with-spf2-lib=${LOCALBASE}/lib
 
 SHEBANG_FILES=	reports/opendmarc-expire.in \
 		reports/opendmarc-import.in \
 		reports/opendmarc-params.in \
 		reports/opendmarc-reports.in
 
 PORTDOCS=	*
 
 .include <bsd.port.pre.mk>
 
 .include "${PORTSDIR}/mail/sendmail/bsd.milter.mk"
 CONFIGURE_ARGS+=	--with-milter=${MILTERBASE}
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/etc/mail
 	${INSTALL_DATA} \
 		${WRKSRC}/opendmarc/opendmarc.conf.sample ${STAGEDIR}${PREFIX}/etc/mail
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libopendmarc.so.2
 
 .include <bsd.port.post.mk>
diff --git a/mail/opendmarc/files/patch-libopendmarc_opendmarc__dns.c b/mail/opendmarc/files/patch-libopendmarc_opendmarc__dns.c
new file mode 100644
index 000000000000..5d11d7205f97
--- /dev/null
+++ b/mail/opendmarc/files/patch-libopendmarc_opendmarc__dns.c
@@ -0,0 +1,10 @@
+--- libopendmarc/opendmarc_dns.c.orig	2021-12-20 06:40:37 UTC
++++ libopendmarc/opendmarc_dns.c
+@@ -203,6 +203,7 @@ dmarc_dns_get_record(char *domain, int *reply, char *g
+ 		++bp;
+ 
+ #ifdef HAVE_RES_NINIT   
++	memset(&resp, '\0', sizeof resp);
+ 	res_ninit(&resp);
+ #ifdef RES_USE_DNSSEC
+ 	resp.options |= RES_USE_DNSSEC;