diff --git a/mail/sendmail/Makefile b/mail/sendmail/Makefile
index 429054c70871..b32083c73a8b 100644
--- a/mail/sendmail/Makefile
+++ b/mail/sendmail/Makefile
@@ -1,6 +1,6 @@
 PORTNAME=	sendmail
 PORTVERSION=	8.18.1
-PORTREVISION=	0
+PORTREVISION=	1
 CATEGORIES=	mail
 MASTER_SITES=	ftp://ftp.sendmail.org/pub/sendmail/
 DISTNAME=	${PORTNAME}.${PORTVERSION}
@@ -80,6 +80,7 @@ CYRUSLOOKUP_IMPLIES=	SOCKETMAP
 SMTPUTF8_LIB_DEPENDS=	libidn2.so:dns/libidn2 libicui18n.so:devel/icu
 MTA_STS_IMPLIES=	SOCKETMAP TLS
 TLS_CERT_CHAIN_IMPLIES=	TLS
+BLACKLISTD_EXTRA_PATCHES= ${FILESDIR}/extra-patch-proto.m4
 
 .include <bsd.port.options.mk>
 
diff --git a/mail/sendmail/files/extra-patch-proto.m4 b/mail/sendmail/files/extra-patch-proto.m4
new file mode 100644
index 000000000000..010626a02432
--- /dev/null
+++ b/mail/sendmail/files/extra-patch-proto.m4
@@ -0,0 +1,12 @@
+--- cf/m4/proto.m4.orig	2024-01-31 06:38:32 UTC
++++ cf/m4/proto.m4
+@@ -720,6 +720,9 @@ _OPTION(HeloName, `confHELO_NAME')
+ # Name to use for EHLO (defaults to $j)
+ _OPTION(HeloName, `confHELO_NAME')
+ 
++# Use Blacklistd
++_OPTION(UseBlacklist, `confBLACKLIST', `false')
++
+ ifdef(`_NEED_SMTPOPMODES_', `dnl
+ # SMTP operation modes
+ C{SMTPOpModes} s d D')