diff --git a/zimbra/mta-components/Makefile b/zimbra/mta-components/Makefile
index 8638f5c8..1da37343 100644
--- a/zimbra/mta-components/Makefile
+++ b/zimbra/mta-components/Makefile
@@ -6,6 +6,8 @@ pname_lc := mta-components
 zname := zimbra-$(pname_lc)
 zspec := $(pname_lc).spec
 
+osdeps = $(osdeps.$(BUILD_PLATFORM))
+
 .PHONY: all clean build setup
 
 all: clean build
@@ -19,6 +21,7 @@ build_rpm: specfile = SPECS/$(zspec)
 build_rpm:
 	$(CD) $(PLATFORM_DIR)/$(zname)/rpm && \
 	$(replace-pkginfo) $(specfile) && \
+	$(PERL) -pi -e 's/OSDEPS/$(osdeps)/' $(specfile) && \
 	$(MKDIR) BUILD BUILDROOT RPMS SOURCES SRPMS && \
 	$(PKG_BUILD) $(specfile)
 
diff --git a/zimbra/mta-components/RHEL.def b/zimbra/mta-components/RHEL.def
new file mode 100644
index 00000000..6c5b896f
--- /dev/null
+++ b/zimbra/mta-components/RHEL.def
@@ -0,0 +1 @@
+osdeps.RHEL9_64 := libnsl2
diff --git a/zimbra/mta-components/zimbra-mta-components/rpm/SPECS/mta-components.spec b/zimbra/mta-components/zimbra-mta-components/rpm/SPECS/mta-components.spec
index 59460f57..da58a749 100644
--- a/zimbra/mta-components/zimbra-mta-components/rpm/SPECS/mta-components.spec
+++ b/zimbra/mta-components/zimbra-mta-components/rpm/SPECS/mta-components.spec
@@ -9,7 +9,7 @@ Requires:           zimbra-cluebringer >= 2.1.0.0.cf484f1b93cf9965886cc89d33bdee
 Requires:           zimbra-mariadb >= 10.1.25-1zimbra8.7b3ZAPPEND
 Requires:           zimbra-opendkim >= 2.10.3-1zimbra8.7b7ZAPPEND, zimbra-perl-mail-spamassassin >= 3.4.6-1zimbra8.8b5ZAPPEND
 Requires:           zimbra-postfix >= 3.6.1-1zimbra8.7b5ZAPPEND
-Requires:           zimbra-spamassassin-rules >= 1.0.0-1zimbra8.8b7ZAPPEND
+Requires:           zimbra-spamassassin-rules >= 1.0.0-1zimbra8.8b7ZAPPEND, OSDEPS
 Packager:           Zimbra Packaging Services <packaging-devel@zimbra.com>
 Group:              Development/Languages
 AutoReqProv:        no