diff --git a/mail/postforward/Makefile b/mail/postforward/Makefile
index 176b7090fea5..42ebddbb6a3f 100644
--- a/mail/postforward/Makefile
+++ b/mail/postforward/Makefile
@@ -1,34 +1,37 @@
 PORTNAME=	postforward
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.1.1
 PORTREVISION=	9
 CATEGORIES=	mail
 
 MAINTAINER=	luca@asgard.ch
 COMMENT=	Postfix SRS forwarding agent
 WWW=		https://github.com/zoni/postforward
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
+DEPRECATED=	Obsolete as postsrsd 2.x uses unix sockets instead of tcp
+EXPIRATION_DATE=2023-12-31
+
 RUN_DEPENDS=	postsrsd:mail/postsrsd
 
 USES=		go
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	zoni
 
 GO_PKGNAME=	github.com/${GH_ACCOUNT}/${PORTNAME}
 GO_BUILDFLAGS=	-ldflags="-s -w"
 
 PLIST_FILES=	bin/${PORTNAME}
 
 PORTDOCS=	README.md CHANGES.md
 
 OPTIONS_DEFINE=	DOCS
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	(cd ${WRKSRC} && ${INSTALL_DATA} ${PORTDOCS} ${STAGEDIR}${DOCSDIR})
 
 .include <bsd.port.mk>