Render SendEmail function MacOS compatible

dev/ofunctions.sh

@@ -1,6 +1,6 @@
 #### MINIMAL-FUNCTION-SET BEGIN ####
 
-## FUNC_BUILD=2016111901
+## FUNC_BUILD=2016112101
 ## BEGIN Generic bash functions written in 2013-2016 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
 
 ## To use in a program, define the following variables:
@@ -410,13 +410,18 @@ function SendEmail {
 	fi
 
 	if type mail > /dev/null 2>&1 ; then
-		if [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V | grep "GNU" > /dev/null; then
+		# We need to detect which version of mail is installed
+		if ! $(type -p mail) -V > /dev/null 2>&1; then
+			# This may be MacOS mail program
+			attachment_command=""
+		elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V | grep "GNU" > /dev/null; then
 			attachment_command="-A $attachment"
 		elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V > /dev/null; then
 			attachment_command="-a$attachment"
 		else
 			attachment_command=""
 		fi
+
 		echo "$message" | $(type -p mail) $attachment_command -s "$subject" "$destinationMails"
 		if [ $? != 0 ]; then
 			Logger "Cannot send mail via $(type -p mail) with attachments !!!" "WARN"