diff --git a/mail/notmuch-emacs/Makefile b/mail/notmuch-emacs/Makefile
index 514193f36afb..791aa7211f3d 100644
--- a/mail/notmuch-emacs/Makefile
+++ b/mail/notmuch-emacs/Makefile
@@ -34,6 +34,8 @@ MANPAGES_BUILD_DEPENDS=	sphinx-build:textproc/py-sphinx
 MANPAGES_CONFIGURE_ON=	HAVE_SPHINX=1
 MANPAGES_INSTALL_TARGET=	install-man
 
+PORTSCOUT=	limit:^[0-9\.]*$$
+
 # fake ./configure to avoid unneeded dependencies
 do-configure:
 	@${CP} ${WRKSRC}/version ${WRKSRC}/version.stamp
diff --git a/mail/notmuch-mutt/Makefile b/mail/notmuch-mutt/Makefile
index eedf11e7acf1..17234ace56fa 100644
--- a/mail/notmuch-mutt/Makefile
+++ b/mail/notmuch-mutt/Makefile
@@ -23,6 +23,8 @@ OPTIONS_DEFINE=	EXAMPLES MANPAGES
 OPTIONS_DEFAULT=	MANPAGES
 OPTIONS_SUB=	yes
 
+PORTSCOUT=	limit:^[0-9\.]*$$
+
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	@${MV} ${STAGEDIR}${PREFIX}/etc/Muttrc.d/notmuch-mutt.rc ${STAGEDIR}${EXAMPLESDIR}/notmuch-mutt.rc
diff --git a/mail/py-notmuch/Makefile b/mail/py-notmuch/Makefile
index 745e1ab2bd8e..9d66d631e6a6 100644
--- a/mail/py-notmuch/Makefile
+++ b/mail/py-notmuch/Makefile
@@ -21,6 +21,8 @@ OPTIONS_DEFINE=	DOCS
 
 DOCS_BUILD_DEPENDS=	sphinx-build:textproc/py-sphinx
 
+PORTSCOUT=	limit:^[0-9\.]*$$
+
 do-build-DOCS-on:
 	@${MAKE_CMD} -C ${WRKSRC}/docs html
 
diff --git a/mail/py-notmuch2/Makefile b/mail/py-notmuch2/Makefile
index 6916fb4579f1..48a8c47d8a60 100644
--- a/mail/py-notmuch2/Makefile
+++ b/mail/py-notmuch2/Makefile
@@ -18,6 +18,8 @@ USE_PYTHON=	autoplist distutils
 MASTERDIR=	${.CURDIR}/../notmuch
 WRKSRC_SUBDIR=	bindings/python-cffi
 
+PORTSCOUT=	limit:^[0-9\.]*$$
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/notmuch2/_capi.abi3.so