From eb20722b8006d819f0b56a85add4d8d22cddbce3 Mon Sep 17 00:00:00 2001
From: Achim Christ <acch@users.noreply.github.com>
Date: Sun, 18 Feb 2018 20:53:13 +0100
Subject: [PATCH] Add environment variable to allow for customizing postsrsd's
 SRS_EXCLUDE_DOMAINS setting (#849, #842)

---
 README.md                  | 6 ++++++
 target/postsrsd-wrapper.sh | 6 +++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2ef43da2..318ea8ca 100644
--- a/README.md
+++ b/README.md
@@ -486,3 +486,9 @@ Note: This postgrey setting needs `ENABLE_POSTGREY=1`
   - **empty** => No sasl_passwd will be created
   - string => `/etc/postfix/sasl_passwd` will be created with the string as password
 
+## SRS (Sender Rewriting Scheme)
+
+##### SRS_EXCLUDE_DOMAINS
+
+  - **empty** => Envelope sender will be rewritten for all domains
+  - provide comma seperated list of domains to exclude from rewriting
diff --git a/target/postsrsd-wrapper.sh b/target/postsrsd-wrapper.sh
index 3e0cc144..93792bdc 100644
--- a/target/postsrsd-wrapper.sh
+++ b/target/postsrsd-wrapper.sh
@@ -1,8 +1,12 @@
 #!/usr/bin/env bash
-# postsrsd-wrapper.sh, version 0.1.0
+# postsrsd-wrapper.sh, version 0.2.0
 
 DOMAINNAME="$(hostname -d)"
 sed -i -e "s/localdomain/$DOMAINNAME/g" /etc/default/postsrsd
 
+if [ -n "$SRS_EXCLUDE_DOMAINS" ]; then
+  sed -i -e "s/^#\?SRS_EXCLUDE_DOMAINS=.*$/SRS_EXCLUDE_DOMAINS=$SRS_EXCLUDE_DOMAINS/g" /etc/default/postsrsd
+fi
+
 /etc/init.d/postsrsd start