From 3c7be32ef50f6df4ced3a75f92305ba9555b7da9 Mon Sep 17 00:00:00 2001
From: emueller <emueller@ennit.de>
Date: Mon, 22 Mar 2021 15:12:27 +0100
Subject: [PATCH 1/3] fix _exists error message when MAIL_BIN env variable is
 not set

---
 notify/mail.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/notify/mail.sh b/notify/mail.sh
index d33fd0d2..10e93f9a 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -78,8 +78,13 @@ mail_send() {
 
 _mail_bin() {
   _MAIL_BIN=""
+	_MAIL_BINS="sendmail ssmtp mutt mail msmtp"
 
-  for b in "$MAIL_BIN" sendmail ssmtp mutt mail msmtp; do
+  if [ -n "$MAIL_BIN" ]; then
+    _MAIL_BINS="$MAIL_BIN $_MAIL_BINS"
+  fi
+
+  for b in $_MAIL_BINS; do
     if _exists "$b"; then
       _MAIL_BIN="$b"
       break

From 37e3e2f9c2b829d0691e9d958d764bfc4eb7d03e Mon Sep 17 00:00:00 2001
From: emueller <emueller@ennit.de>
Date: Mon, 22 Mar 2021 15:32:02 +0100
Subject: [PATCH 2/3] fixed formating

---
 notify/mail.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/notify/mail.sh b/notify/mail.sh
index 10e93f9a..2be93cd8 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -78,7 +78,7 @@ mail_send() {
 
 _mail_bin() {
   _MAIL_BIN=""
-	_MAIL_BINS="sendmail ssmtp mutt mail msmtp"
+  _MAIL_BINS="sendmail ssmtp mutt mail msmtp"
 
   if [ -n "$MAIL_BIN" ]; then
     _MAIL_BINS="$MAIL_BIN $_MAIL_BINS"

From eb0c629fad119604d0944719ca2bfc5e70dbc97e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eike-Christian=20M=C3=BCller?= <emueller@ennit.de>
Date: Thu, 29 Apr 2021 12:53:13 +0200
Subject: [PATCH 3/3] more simple mail.sh fix

Reverted the original patch and changed it to the obvious simple solution provided by @Neilpang.
---
 notify/mail.sh | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/notify/mail.sh b/notify/mail.sh
index 2be93cd8..2cbddb63 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -78,13 +78,8 @@ mail_send() {
 
 _mail_bin() {
   _MAIL_BIN=""
-  _MAIL_BINS="sendmail ssmtp mutt mail msmtp"
 
-  if [ -n "$MAIL_BIN" ]; then
-    _MAIL_BINS="$MAIL_BIN $_MAIL_BINS"
-  fi
-
-  for b in $_MAIL_BINS; do
+  for b in $MAIL_BIN sendmail ssmtp mutt mail msmtp; do
     if _exists "$b"; then
       _MAIL_BIN="$b"
       break