diff --git a/README.md b/README.md
index d5c7e1f..c797ef8 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # postgrey
 
+A Postfix policy server for greylisting.
+
diff --git a/postgrey.service b/postgrey.service
new file mode 100644
index 0000000..2e9d601
--- /dev/null
+++ b/postgrey.service
@@ -0,0 +1,18 @@
+[Unit]
+Description=Postfix Greylisting Service
+Before=postfix.service
+
+[Service]
+Type=forking
+PIDFile=/run/postgrey/postgrey.pid
+ExecStart=/usr/bin/postgrey --inet=127.0.0.1:10030 \
+	--pidfile=/run/postgrey/postgrey.pid \
+	--group=postgrey --user=postgrey \
+	--daemonize \
+	--greylist-text="Greylisted for %%s seconds"
+Restart=always
+RestartSec=5
+TimeoutSec=10
+
+[Install]
+WantedBy=multi-user.target
diff --git a/postgrey.spec b/postgrey.spec
new file mode 100644
index 0000000..0f6d0d6
--- /dev/null
+++ b/postgrey.spec
@@ -0,0 +1,90 @@
+%define groupid 65060
+%define userid  65060
+Name:          postgrey
+Version:       1.37
+Release:       1mamba
+Summary:       A Postfix policy server for greylisting
+Group:         System/Servers
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://www.howtoforge.com/greylisting_postfix_postgrey
+Source:        https://postgrey.schweikert.ch/pub/postgrey-%{version}.tar.gz
+Source1:       postgrey.service
+Source2:       postgrey.tmpfiles
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: libperl
+BuildRequires: perl-BerkeleyDB
+BuildRequires: perl-Net-DNS
+BuildRequires: perl-Net-Server
+BuildRequires: perl-NetAddr-IP
+BuildRequires: perl-devel
+## AUTOBUILDREQ-END
+Requires:      perl
+Requires:      perl-Net-Server
+Requires:      perl-IO-Multiplex
+Requires:      perl-Net-DNS
+Requires:      perl-NetAddr-IP
+Requires:      perl-BerkeleyDB
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+A Postfix policy server for greylisting.
+
+%prep
+%setup -q
+
+%build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+install -D -m0755 postgrey %{buildroot}%{_bindir}/postgrey
+install -D -m0644 %{SOURCE1} %{buildroot}%{_unitdir}/postgrey.service
+install -D -m0644 %{SOURCE2} %{buildroot}%{_tmpfilesdir}/postgrey.conf
+install -D -m0755 contrib/postgreyreport %{buildroot}%{_bindir}/postgreyreport
+install -D -m0644 postgrey_whitelist_recipients %{buildroot}%{_sysconfdir}/postfix/postgrey_whitelist_recipients
+install -D -m0644 postgrey_whitelist_clients %{buildroot}%{_sysconfdir}/postfix/postgrey_whitelist_clients
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%pre
+/usr/sbin/groupadd postgrey -g %{groupid} 2>/dev/null
+/usr/sbin/useradd -u %{userid} -c 'Postgrey user' -d /dev/null -g postgrey \
+   -s /bin/true postgrey 2>/dev/null
+:
+
+%preun
+%systemd_preun postgrey
+# erase
+if [ $1 -eq 0 ]; then
+   /usr/sbin/userdel postgrey 2>/dev/null
+   /usr/sbin/groupdel postgrey 2>/dev/null
+fi
+:
+
+%post
+/sbin/ldconfig
+%tmpfiles_create postgrey.conf
+%systemd_post postgrey
+:
+
+%postun
+/sbin/ldconfig
+%systemd_postun_with_restart postgrey
+:
+
+%files
+%defattr(-,root,root)
+%config(noreplace) %{_sysconfdir}/postfix/postgrey_whitelist_clients
+%config(noreplace) %{_sysconfdir}/postfix/postgrey_whitelist_recipients
+%{_bindir}/postgrey
+%{_bindir}/postgreyreport
+%{_tmpfilesdir}/postgrey.conf
+%{_unitdir}/postgrey.service
+%doc COPYING
+
+%changelog
+* Wed Aug 14 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.37-1mamba
+- package created using the webbuild interface
diff --git a/postgrey.tmpfiles b/postgrey.tmpfiles
new file mode 100644
index 0000000..b79d18f
--- /dev/null
+++ b/postgrey.tmpfiles
@@ -0,0 +1,2 @@
+d /var/spool/postfix/postgrey/ 0755 postgrey postgrey -
+d /run/postgrey                0755 postgrey postgrey -