diff --git a/mail/exim/Makefile b/mail/exim/Makefile
index 3c7030a0499b..874f352e5ae3 100644
--- a/mail/exim/Makefile
+++ b/mail/exim/Makefile
@@ -2,7 +2,7 @@
 
 PORTNAME=	exim
 PORTVERSION?=	${EXIM_VERSION}
-PORTREVISION?=	1
+PORTREVISION?=	2
 CATEGORIES=	mail
 MASTER_SITES=	EXIM:exim
 MASTER_SITE_SUBDIR=	/exim4/:exim \
diff --git a/mail/exim/files/patch-src-dmarc.c b/mail/exim/files/patch-src-dmarc.c
new file mode 100644
index 000000000000..c0054446458c
--- /dev/null
+++ b/mail/exim/files/patch-src-dmarc.c
@@ -0,0 +1,19 @@
+--- src/dmarc.c.orig	2021-04-30 12:08:21 UTC
++++ src/dmarc.c
+@@ -37,6 +37,7 @@ uschar *spf_human_readable = NULL;
+ u_char *header_from_sender = NULL;
+ int history_file_status    = DMARC_HIST_OK;
+ uschar *dkim_history_buffer= NULL;
++uschar *dkim_selector = NULL;
+ 
+ typedef struct dmarc_exim_p {
+   uschar *name;
+@@ -446,7 +447,7 @@ if (!dmarc_abort && !sender_host_authenticated)
+ 		  vs == PDKIM_VERIFY_INVALID ? DMARC_POLICY_DKIM_OUTCOME_TMPFAIL :
+ 		  DMARC_POLICY_DKIM_OUTCOME_NONE;
+     libdm_status = opendmarc_policy_store_dkim(dmarc_pctx, US sig->domain,
+-					       dkim_result, US"");
++					       dkim_selector, dkim_result, US"");
+     DEBUG(D_receive)
+       debug_printf("DMARC adding DKIM sender domain = %s\n", sig->domain);
+     if (libdm_status != DMARC_PARSE_OKAY)