diff --git a/mail/milter-bogom/Makefile b/mail/milter-bogom/Makefile
index 442f0c6e763b..f391e23a5a1d 100644
--- a/mail/milter-bogom/Makefile
+++ b/mail/milter-bogom/Makefile
@@ -14,8 +14,13 @@ COMMENT=	Simple sendmail milter to interface bogofilter
 
 RUN_DEPENDS=	bogofilter:${PORTSDIR}/mail/bogofilter
 
+.if !exists(/usr/lib/libmilter.so)
+LIB_DEPENDS=	libmilter.so:${PORTSDIR}/mail/sendmail
+LDFLAGS+=	-I${LOCALBASE}/include
+.endif
+
 MAKE_ARGS=	CPPFLAGS="-DDEF_CONF=\\\"${PREFIX}/etc/bogom.conf\\\" ${PTHREAD_CFLAGS}" \
-		LIBS="-lmilter ${PTHREAD_LIBS}"
+		LIBS="-lmilter ${PTHREAD_LIBS}" LDFLAGS="${LDFLAGS}"
 
 USE_RC_SUBR=	milter-bogom
 SUB_FILES=	pkg-message
diff --git a/mail/milter-skem/Makefile b/mail/milter-skem/Makefile
index 2b57198d7736..53e3e5c04549 100644
--- a/mail/milter-skem/Makefile
+++ b/mail/milter-skem/Makefile
@@ -9,6 +9,11 @@ MASTER_SITES=	http://virtual-estates.net/skem/
 MAINTAINER=	mi@aldan.algebra.com
 COMMENT=	Cache earlier sendmail's verdicts for the relays
 
+.if !exists( /usr/include/libmilter/mfapi.h )
+BUILD_DEPENDS+=	${LOCALBASE}/include/libmilter/mfapi.h:${PORTSDIR}/mail/sendmail
+CFLAGS+=	-I${LOCALBASE}/include
+.endif
+
 USES=		tar:bzip2 uidfix
 
 PLIST_FILES=	sbin/skem \
diff --git a/mail/opendmarc/Makefile b/mail/opendmarc/Makefile
index bcad8d03c911..28c6ee753a23 100644
--- a/mail/opendmarc/Makefile
+++ b/mail/opendmarc/Makefile
@@ -19,6 +19,11 @@ 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
 
+.if !exists( /usr/include/libmilter/mfapi.h )
+BUILD_DEPENDS+=	${LOCALBASE}/include/libmilter/mfapi.h:${PORTSDIR}/mail/sendmail
+CFLAGS+=	-I${LOCALBASE}/include
+.endif
+
 USES=		libtool shebangfix
 SHEBANG_FILES=	reports/opendmarc-expire.in \
 		reports/opendmarc-import.in \
diff --git a/mail/py-milter/Makefile b/mail/py-milter/Makefile
index 6dce26b42112..d572b687b533 100644
--- a/mail/py-milter/Makefile
+++ b/mail/py-milter/Makefile
@@ -17,6 +17,7 @@ LICENSE_FILE=	${WRKSRC}/COPYING
 
 .if !exists(/usr/lib/libmilter.so)
 LIB_DEPENDS=	libmilter.so:${PORTSDIR}/mail/sendmail
+CFLAGS+=	-I${LOCALBASE}/include
 .endif
 
 PYPORTNAME=	${PKGNAMEPREFIX:C/[0-9]+-//}${PORTNAME}
diff --git a/security/clamav/Makefile b/security/clamav/Makefile
index 03d6cd529d94..604443ee352a 100644
--- a/security/clamav/Makefile
+++ b/security/clamav/Makefile
@@ -150,6 +150,7 @@ LDFLAGS+=	-lldap
 . if !exists(/usr/lib/libmilter.a) || exists(${LOCALBASE}/lib/libmilter.a)
 BUILD_DEPENDS+=	${LOCALBASE}/lib/libmilter.a:${PORTSDIR}/mail/sendmail
 CONFIGURE_ARGS+=--with-sendmail=${LOCALBASE}/sbin/sendmail
+LDFLAGS+=	-L${LOCALBASE}/lib
 . else
 CONFIGURE_ARGS+=--with-sendmail=/usr/sbin/sendmail
 . endif