Merge branch 'master' of github.com:Snawoot/postfix-mta-sts-resolver

contrib/README.md

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+# Usage 
+
+The default Python version in RHEL7 (and clones) is too old, you need at least 3.5 to run postfix-mta-sts. However, Python 3.6 is availale in the Software collections
+
+For other distributions please edit the Systemd Unit file accordingly
+
+# Create a User (and Group) to run MTA-STS
+```bash
+useradd -c "Daemon for MTA-STS policy checks" mta-sts -s /sbin/nologin
+```
+
+# Systemd Unit file
+
+Place the provided file to /etc/systemd/system and reload the system daemon
+
+```bash
+systemctl daemon-reload
+```
+
+To enable MTA-STS on system startup run
+
+```bash
+systemctl enable mta-sts.service
+```
+

contrib/postfix-mta-sts.service

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+[Unit]
+Description=Postfix MTA STS daemon
+After=syslog.target network.target 
+
+[Service]
+Type=simple
+User=mta-sts
+Group=mta-sts
+# This is the ExecStart path for RHEL7 using python 36 from the Software collections.
+# You may use a different python interpreter on other distributions
+ExecStart=/opt/rh/rh-python36/root/bin/mta-sts-daemon
+
+[Install]
+WantedBy=multi-user.target